WASTE MANAGEMENT INC (WM)

Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion should be read in conjunction with the Condensed Consolidated Financial Statements and notes thereto included under Item 1 and our Consolidated Financial Statements and notes thereto and related Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2025.

This Quarterly Report on Form 10-Q contains certain forward-looking statements that are made subject to the safe harbor protections provided by the Private Securities Litigation Reform Act of 1995. Forward-looking statements are often identified by the words, “will,” “may,” “should,” “continue,” “anticipate,” “believe,” “expect,” “plan,” “forecast,” “project,” “estimate,” “intend,” and words of a similar nature and include estimates or projections of financial and other data; comments on expectations relating to future periods; plans or objectives for the future; and statements of opinions, views or beliefs about current and future events, circumstances or performance. You should view these statements with caution. They are based on the facts and circumstances known to us as of the date the statements are made. These forward looking statements are subject to risks and uncertainties that could cause actual results to be materially different from those set forth in such forward-looking statements, including but not limited to failure to implement our optimization, automation, growth and cost savings initiatives and overall business strategy; failure to obtain the results anticipated from strategic initiatives, investments, acquisitions or new lines of business; failure to identify acquisition targets, consummate and integrate acquisitions, including our ability to integrate the acquisition of Stericycle, Inc. (“Stericycle”) (which is now presented as our Healthcare Solutions segment) and achieve the anticipated benefits therefrom, including synergies; legal, regulatory, operational, technological and other matters that may affect the costs and timing of our ability to integrate and deliver all of the expected benefits of the Stericycle acquisition; existing or new environmental and other regulations, including developments related to emerging contaminants, gas emissions, renewable energy, recyclables, extended producer responsibility and our natural gas fleet; significant environmental, safety or other incidents resulting in liabilities or brand damage; failure to obtain and maintain necessary permits due to land scarcity, public opposition or otherwise; diminishing landfill capacity, resulting in increased costs and the need for disposal alternatives; failure to attract, hire and retain key team members and a high quality workforce; increases in labor costs due to union organizing activities or changes in wage and labor related regulations; disruption and costs resulting from severe weather and destructive climate events; failure to achieve our sustainability goals or execute on our sustainability-related strategy and initiatives, including within planned timelines or anticipated budgets due to disruptions, delays, cost increases or changes in environmental or tax regulations and incentives; focus on and regulation of, environmental and sustainability-related disclosures, which could lead to increased costs, risk of non-compliance, brand damage and litigation risk related to our sustainability efforts; macroeconomic conditions, geopolitical conflict and large-scale market disruption resulting in labor, supply chain and transportation constraints, inflationary cost pressures and fluctuations in commodity prices, fuel and other energy costs; increased competition and pricing pressure; impacts from international trade restrictions and tariffs; competitive disposal alternatives, diversion of waste from landfills and declining waste volumes; changes in general economic conditions, capital markets or consumer trends; changing conditions in the recycling industry, including impacts on demand, pricing and availability of counterparties; changing conditions in the healthcare industry; adoption of new tax legislation; fuel shortages; failure to develop and protect new technology; failure of technology to perform as expected; inability to adapt and manage the benefits and risks of artificial intelligence; failure to prevent, detect and address cybersecurity incidents or comply with privacy regulations; negative outcomes of litigation or governmental proceedings, including those acquired through transactions; failure to maintain an effective system of internal control over financial reporting; and operational or management decisions or developments that result in impairment charges and other risks discussed in our filings with the SEC, including Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2025. We assume no obligation to update any forward-looking statement, including financial estimates and forecasts, whether as a result of future events, circumstances or developments or otherwise.

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Overview

We are North America’s leading provider of comprehensive environmental solutions, providing services throughout the United States (“U.S.”) and Canada. We partner with our customers and the communities we serve to manage and reduce waste at each stage from collection to disposal, while recovering valuable resources and creating clean, renewable energy. We own or operate the largest network of landfills throughout the U.S. and Canada. In order to make disposal

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more practical for larger urban markets, where the distance to landfills is typically farther, we manage transfer stations that consolidate, compact and transport waste efficiently and economically. Our solid waste business is operated and managed locally by our subsidiaries that focus on distinct geographic areas and provide collection, transfer, disposal, recycling and resource recovery services. Through our Renewable Energy segment, we are also a leading developer, operator and owner of landfill gas-to-energy facilities in the U.S. and Canada that produce renewable electricity and renewable natural gas (“RNG”), which is a significant source of fuel that we allocate to our natural gas fleet. Our Healthcare Solutions segment provides regulated waste and compliance services (“RWCS”) and secure information destruction (“SID”) services in the U.S., Canada and Western Europe that protect people and brands, promote health and well-being and safeguard the environment.  Additionally, through our Recycling Processing and Sales segment, we are a leading recycler in the U.S. and Canada, handling materials that include paper, cardboard, glass, plastic and metal.

Our senior management evaluates, oversees and manages the financial performance of our business through five reportable segments, referred to as (i) Collection and Disposal - East Tier (“East Tier”); (ii) Collection and Disposal - West Tier (“West Tier”); (iii) Recycling Processing and Sales; (iv) Renewable Energy and (v) Healthcare Solutions. Our East and West Tiers, along with certain ancillary services (“Other Ancillary”) that are not managed through our Tier segments, but that support our collection and disposal operations, form our “Collection and Disposal” business. We also provide additional services not managed through our five reportable segments, which are presented as Corporate and Other.

Strategy

Our fundamental strategy has not changed; we remain dedicated to providing long-term value to our stockholders by successfully executing our core strategy of focused differentiation and continuous improvement. We have enabled a people-first, technology-led focus to drive our mission to maximize resource value, while minimizing environmental impact, and sustainability and environmental stewardship are embedded in all that we do. Our strategy leverages and sustains the strongest asset network in the industry to drive best-in-class customer experience and growth. Our strategic planning processes appropriately consider that the future of our business and the industry can be influenced by changes in economic conditions, the competitive landscape, the regulatory environment, asset and resource availability and technology. We believe that focused differentiation, which is driven by capitalizing on our unique and extensive network of assets, will deliver profitable growth and position us to leverage competitive advantages. Simultaneously, we believe that investing in automation to improve processes and drive operational efficiency combined with a focus on the cost to serve our customers will yield an attractive profit margin and enhanced service quality. We have furthered our strategy of focused differentiation and continuous improvement beyond our traditional waste operations through our sustainability growth strategy, which has positioned us to capitalize on the significant investments made in our Renewable Energy and Recycling Processing and Sales segments, while increasing automation and reducing labor dependency. In addition, our Healthcare Solutions segment provides a complementary business platform in medical waste, a sector with attractive near- and long-term growth dynamics and in secure information destruction services to further our leading suite of comprehensive waste and environmental solutions. Furthermore, we continue to evaluate and plan to pursue emerging diversion technologies that may generate additional value.

Business Environment

The waste industry is a comparatively mature and stable industry. However, customers increasingly expect more of their waste materials to be recovered and those waste streams are becoming more complex. In addition, many state and local governments mandate diversion, recycling and waste reduction at the source and prohibit the disposal of certain types of waste at landfills. We monitor these developments to adapt our service offerings. As companies, individuals and communities look for ways to be more sustainable, we promote our comprehensive services that go beyond our core business of collecting and disposing of waste in order to meet their needs. This includes expanding traditional recycling services, increasing organics collection and processing, providing medical waste services and expanding our renewable energy projects to meet the evolving needs of our diverse customer base. As North America’s leading provider of comprehensive environmental solutions, we are taking big, bold steps to catalyze positive change – change that will impact our Company as well as the communities we serve. Consistent with our Company’s long-standing commitment to sustainability and environmental stewardship, we have published our 2025 Sustainability Report, providing details on our sustainability-related performance and outlining progress towards our 2030 sustainability goals. The 2025 Sustainability Report conveys the strong linkage between the Company’s sustainability goals and our growth strategy, inclusive of the

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expansion of the Company’s Recycling Processing and Sales and Renewable Energy segments. The information in this report can be found at sustainability.wm.com but it does not constitute a part of, and is not incorporated by reference into, this Quarterly Report on Form 10-Q.

We encounter intense competition from governmental, quasi-governmental and private service providers based on pricing, and to a much lesser extent, the nature of service offerings, particularly in the residential line of business. Our industry is directly affected by changes in general economic factors, including increases and decreases in consumer spending, business expansions and construction activity. These factors generally correlate to volumes of waste generated and impact our revenue. Negative economic conditions and other macroeconomic tre

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

This section includes a discussion of our results of operations for the year ended December 31, 2025. This discussion may contain forward-looking statements. See “Cautionary Statement about Forward-Looking Statements” in Part I of this Annual Report on Form 10-K for more information. Forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from our historical experience and our present expectations or anticipated results. These risks and uncertainties include, but are not limited to, those described in Part I, Item 1A. Risk Factors and elsewhere in this report and may also be described from time to time in our future reports filed with the U.S. Securities and Exchange Commission (“SEC”). The following discussion should be read considering those disclosures and together with the Consolidated Financial Statements and the notes thereto.

For further discussion regarding our results of operations for the year ended December 31, 2024 as compared to the year ended December 31, 2023, refer to Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024.

Overview

We are North America’s leading provider of comprehensive environmental solutions, primarily providing services throughout the United States (“U.S.”) and Canada. We partner with our customers and the communities we serve to manage and reduce waste at each stage from collection to disposal, while recovering valuable resources and creating clean, renewable energy. We own or operate the largest network of landfills throughout the U.S. and Canada. In order to make disposal more practical for larger urban markets, where the distance to landfills is typically farther, we manage transfer stations that consolidate, compact and transport waste efficiently and economically. Our solid waste business is operated and managed locally by our subsidiaries that focus on distinct geographic areas and provide collection, transfer, disposal, recycling and resource recovery services. Through our Waste Management Renewable Energy (“Renewable Energy”) segment, we are also a leading developer, operator and owner of landfill gas-to-energy facilities in the U.S. and Canada that produce renewable electricity and renewable natural gas (“RNG”), which is a significant source of fuel that we allocate to our natural gas fleet. Following our 2024 acquisition of Stericycle, Inc. (“Stericycle”), our Healthcare Solutions segment provides regulated waste and compliance services (“RWCS”) and secure information destruction (“SID”) services in the U.S., Canada and Western Europe that protect people and brands, promote health and well-being and safeguard the environment. Additionally, through our Recycling Processing and Sales segment, we are a leading recycler in the U.S. and Canada, handling materials that include paper, cardboard, glass, plastic and metal.

Our senior management evaluates, oversees and manages the financial performance of our business through five reportable segments, referred to as (i) Collection and Disposal - East Tier (“East Tier”); (ii) Collection and Disposal - West Tier (“West Tier”); (iii) Recycling Processing and Sales; (iv) Renewable Energy and (v) Healthcare Solutions. Our East and West Tiers, along with certain ancillary services (“Other Ancillary”) that are not managed through our Tier segments but that support our collection and disposal operations, form our “Collection and Disposal” businesses. We also provide additional services not managed through our five reportable segments, which are presented as Corporate and Other.

Stericycle Acquisition

On November 4, 2024, we completed our acquisition of all outstanding shares of Stericycle for $62.00 per share in cash, pursuant to an Agreement and Plan of Merger dated June 3, 2024. Total enterprise value of the acquisition was $7.2 billion (net of cash acquired) when including the assumption of $0.5 billion of debt and the repayment of approximately $0.8 billion of net debt. The acquisition expanded our offerings in the U.S., Canada and parts of Western Europe. The post-closing operating results of Stericycle have been included in our Consolidated Financial Statements within our Healthcare Solutions segment.

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For the year ended December 31, 2025, we incurred acquisition and integration related costs of $120 million, comprised of $89 million of selling, general and administrative costs and $31 million of restructuring costs. For the year ended December 31, 2024, we incurred acquisition and integration related costs of $160 million, which were primarily classified as selling, general and administrative expenses.Refer to Note 19 for more information on the performance of our Healthcare Solutions segment.

Collection and Disposal

Our Collection and Disposal businesses provide integrated environmental services, including collection, transfer and disposal. We evaluate our Collection and Disposal businesses primarily through two geographic segments, East Tier and West Tier. Our East Tier primarily consists of geographic areas located in the Eastern U.S., the Great Lakes region and substantially all of Canada. Our West Tier primarily includes geographic areas located in the Western, Southern and Central U.S., including the upper Midwest region, and British Columbia, Canada. Additionally, we provide Other Ancillary services that are not managed through the Tier segments but that support our collection and disposal operations. Other Ancillary includes specialized services performed for customers that have differentiated needs. These specialized services are targeted at large industrial customers managed through our Sustainability and Environmental Solutions (“SES”) business or geographically dispersed customers managed through our Strategic Business Solutions (“WMSBS”) business. Also included within Other Ancillary are the results of non-operating entities that provide financial assurance and self-insurance support for our business, net of intercompany activity.

Our Collection and Disposal businesses’ operating revenues are primarily generated from fees charged for our collection, transfer and disposal. Revenues from our collection operations are influenced by factors such as collection frequency, type of collection equipment furnished, type and volume or weight of the waste collected, distance to the disposal facility or recycling facility and our disposal costs. Revenues from our landfill operations consist of tipping fees, which are generally based on the type and weight or volume of waste deposited, considering our cost of loading, transporting and disposing of the solid waste at a disposal site. Fees charged at transfer stations are generally based on the weight or volume of waste deposited, considering our cost of loading, transporting and disposing of the solid waste at a disposal site. The fees we charge for our services generally include applicable fees, such as our energy surcharge, which are intended to pass through to customers for direct and indirect costs incurred.

Included within our Collection and Disposal businesses are landfills having (i) 19 third-party power generating facilities converting our landfill gas to fuel electricity generators; (ii) 17 third-party RNG facilities processing landfill gas to be sold to natural gas suppliers and (iii) nine third-party projects delivering our landfill gas by pipeline to industrial customers as a direct substitute for fossil fuels in industrial processes. In return for providing our landfill gas, we receive royalties from each facility, including the benefit of a 15% royalty from our Renewable Energy segment based on net operating revenue generated through the sale of RNG, renewable identification numbers (“RINs”), electricity and capacity, Renewable Energy Credits (“RECs”) and related environmental attributes from the 86 landfill beneficial use renewable energy projects owned by Renewable Energy on our active landfills, which is eliminated in consolidation.

Recycling Processing and Sales

Our Recycling Processing and Sales segment includes the processing and sales of materials collected from residential, commercial and industrial customers. The materials are delivered to and processed at one of our many recycling facilities. Through our brokerage business, we also manage the marketing of recycling commodities that are processed in our facilities and by third parties by maintaining comprehensive service centers that continuously analyze market prices, logistics, market demands and product quality.

Recycling Processing and Sales revenues generally consist of tipping fees and the sale of recycling commodities to and/or on behalf of third parties. Our Recycling Processing and Sales segment excludes the collection of recycled materials from our residential, commercial, and industrial customers which is included within our Collection and Disposal businesses.

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Renewable Energy

Our Renewable Energy segment develops, operates and promotes projects for the beneficial use of landfill gas. Landfill gas is produced naturally as waste decomposes in a landfill. The methane component of the landfill gas is a readily available, renewable energy source that can be gathered and used beneficially as an alternative to fossil fuel. Renewable Energy converts landfill gas into several sources of renewable energy which include RNG, electricity and capacity, heat and/or steam. Renewable Energy also generates (i) RINs under the Renewable Fuel Standard (“RFS”) program; (ii) other credits under a variety of state programs associated with the use of RNG in our compressed natural gas fleet and (iii) RECs associated with the production of electricity. The RINs, RECs, and other credits are sold to counterparties who are obligated under the regulatory programs and have a responsibility to procure RINs, RECs, and other credits proportionate to their fossil fuel production and imports. RINs and RECs prices generally fluctuate in response to regulations enacted by the Environmental Protection Agency (“EPA”) or other regulatory bodies, as well as changes in supply and demand.

As of December 31, 2025, we had 103 landfill gas beneficial use projects producing commercial quantities of methane gas at owned or operated landfills. For 62 of these projects, the processed gas is used to fuel electricity generators. The electricity is then sold to public utilities, municipal utilities or power cooperatives. For 24 of these projects, the gas is used at the landfill or delivered by pipeline to industrial customers as a direct substitute for fossil fuels in industrial processes. For 17 of these projects, the landfill gas is processed to pipeline quality RNG and then sold to natural gas suppliers. Additionally, three projects are on third-party landfills. The revenues from these facilities are primarily generated through (i) the sale of captured and converted landfill methane gas; (ii) the sale of RINs under the RFS program implemented by the EPA; (iii) sale of Low Carbon Fuel credits designed to stimulate the use of low-carbon fuels and (iv) the sale of energy (electricity and capacity) and associated RECs. Renewable Energy is charged a 15% royalty on net operating revenue from these facilities residing on our active and closed landfills from our Collection and Disposal and Corporate and Other businesses, which is eliminated in consolidation. Additionally, Renewable Energy operates and maintains six third-party landfill beneficial gas use projects in return for service revenue. Our Collection and Disposal and Corporate and Other businesses benefit from these projects as well as 54 additional third-party landfill beneficial gas use projects in the form of royalties.

Healthcare Solutions

Our Healthcare Solutions segment includes (i) RWCS which provide compliance programs and collection, processing, and disposal of regulated and specialized waste, including medical, pharmaceutical and hazardous waste and (ii) SID services, which provide for the collection of personal and confidential information for secure destruction and recycling of sorted office paper. While the Healthcare Solutions businesses manage large volumes of waste and other materials, the average volume per customer site is relatively small.

Our customers typically enter into a contract for the provision of services on a scheduled basis, including weekly, monthly or on an as-needed basis over the contract term. Under the contract terms, the Healthcare Solutions businesses receive fees based on a monthly, quarterly or annual rate and/or fees based on contractual rates depending upon measures including the type and volume or weight of waste. Operating revenues are invoiced based on the terms of the underlying contract either on a regular basis, or as services are performed and are generally due within a short period of time after invoicing based upon normal terms and conditions for our business type and the geography of the services performed.

As of December 31, 2025, our Healthcare Solutions segment operates out of approximately 307 leased and owned facilities worldwide with 51 autoclaves or other alternative medical waste treatment facilities, 17 medical waste incinerator facilities, 99 SID processing facilities and 140 transfer stations.

Corporate and Other

We also provide additional services that are not managed through our operating segments, which are presented in this report as Corporate and Other. This includes the activities of our corporate office, including costs associated with our long-term incentive program, expanded service offerings and solutions (such as our investments in businesses and technologies that are designed to offer services and solutions ancillary or supplementary to our current operations) as well as our closed sites. Also included within our Corporate and Other businesses closed sites are (i) five third-party power

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generating facilities converting our landfill gas to fuel electricity generators; (ii) two third-party projects delivering our landfill gas by pipeline to industrial customers as a direct substitute for fossil fuels in industrial processes and (iii) two third-party RNG facilities processing landfill gas to be sold to natural gas suppliers in return for a royalty. Additionally, Corporate and Other benefits from a 15% royalty from our Renewable Energy segment based on net operating revenue generated through the sale of RNG, RINs, electricity and capacity, RECs and related environmental attributes from the 17 landfill beneficial use renewable energy projects owned by Renewable Energy on our closed sites, which is eliminated in consolidation.

Business Environment

The waste industry is a comparatively mature and stable industry. However, customers increasingly expect more of their waste materials to be recovered and those waste streams are becoming more complex. In addition, many state and local governments mandate diversion, recycling and waste reduction at the source and prohibit the disposal of certain types of waste at landfills. We monitor these developments to adapt our service offerings. As companies, individuals and communities look for ways to be more sustainable, we promote our comprehensive services that go beyond our core business of collecting and disposing of waste in order to meet their needs. This includes expanding traditional recycling services, increasing organics collection and processing, providing medical waste services and expanding our renewable energy projects to meet the evolving needs of our diverse customer base. As North America’s leading provider of comprehensive environmental solutions, we are taking big, bold steps to catalyze positive change – change that will impact our Company as well as the communities we serve. Consistent with our Company’s long-standing commitment to sustainability and environmental stewardship, we have published our 2025 Sustainability Report, providing details on our sustainability-related performance and outlining progress towards our 2030 sustainability goals. The Sustainability Report conveys the strong linkage between the Company’s sustainability goals and our growth strategy, inclusive of the expansion of the Company’s Recycling Processing and Sales and Renewable Energy segments. The information in this report can be found at sustainability.wm.com but it does not constitute a part of, and is not incorporated by reference into, this Annual Report on Form 10-K. For further discussion see Item 1. Business – Regulation – Recent Developments and Focus Areas in Policy and Regulation.

We encounter intense competition from governmental, quasi-governmental and private service providers based on pricing, and to a much lesser extent, the nature of service offerings, particularly in the residential line of business. Our industry is directly affected by changes in general economic factors, including increases and decreases in consumer spending, business expansions and construction activity. These factors generally correlate to volumes of waste generated and impact our revenue. Negative economic conditions and other macroeconomic trends can and have caused customers to reduce their service needs. Such negative economic conditions, in addition to competitor actions, can impact our strategy to negotiate, renew, or expand service contracts and grow our business. We also encounter competition for acquisitions and growth opportunities. General economic factors and the market for consumer goods, in addition to regulatory developments, can also significantly impact commodity prices for the recyclable materials we sell. Significant components of our operating expenses vary directly as we experience changes in revenue due to volume and inflation. Volume changes can fluctuate significantly by line of business and volume changes in higher margin businesses can impact key financial metrics. We must dynamically manage our cost structure in response to volume changes and cost inflation.

We believe the Company’s industry-leading asset network and strategic focus on investing in our people and our digital platform will give the Company the necessary tools to address the evolving challenges impacting the Company and our industry. In line with our commitment to continuous improvement and a differentiated customer experience, we remain focused on our automation and optimization investments to enhance our operational efficiency and change the way we interact with our customers. Advancements made through these initiatives are intended to seamlessly and digitally connect all enterprise functions required to service customers and provide the best experience. We have made significant progress in executing this technology enablement strategy to automate and optimize certain elements of our service delivery model. The key benefits are reduced labor dependency on certain high-turnover jobs, particularly in customer experience, recycling and residential collection, while further elevating our customer self-service through digitalization and implementation of technologies to enhance the safety, reliability and efficiency within our collection operations.

We sometimes experience margin pressures and variability in earnings and margins from our commodity-driven businesses, specifically within our Recycling Processing and Sales and Renewable Energy segments. During 2025, we

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experienced decreases in market prices for recycled commodities when compared to prior year caused by a number of factors, including the closure of domestic paper mills, a decrease in demand for recycled content by certain consumer goods producers, focused reduction in cardboard packaging and overall market conditions. While the combined impacts of commodity price fluctuations from the prior year had a modestly favorable impact on the Renewable Energy segment, we may experience more significant impacts from fluctuations in the prices of RINs and natural gas in the future. We continue to take proactive steps to adjust our business models to protect against the down-side risk of changes in commodity prices.

Variability in economic conditions, including inflation, interest rates, employment trends and supply chain reliability, can create risk and uncertainty in financial outlook. We take proactive steps to recover and mitigate inflationary cost pressures through our overall pricing efforts and by managing our costs through efficiency, labor productivity and investments in technology to automate certain aspects of our business. We remain committed to putting our people first to ensure that they are well positioned to execute our daily operations diligently and safely. We remain focused on delivering outstanding customer service, managing our variable costs with changing volumes and investing in technology that will enhance our customers’ experience and provide operating efficiencies intended to reduce our cost to serve.

Financial Results

During 2025, we continued to focus on our priorities to advance our strategy – enhancing employee engagement, permanently reducing our cost to serve our customers through the use of technology and automation, investing in growth through our Recycling Processing and Sales and Renewable Energy segments and integrating the Stericycle business. We continue to invest in our people through paying a competitive market wage, investing in our digital platform and providing training for our team members. We remain committed to our investment in recycling automation, which reduces costs and increases throughput, positioning us to overcome commodity price headwinds and deliver a differentiated service. As part of the ongoing integration of Stericycle, which constitutes our Healthcare Solutions segment, we achieved synergies by reducing costs of duplicative business processes, established a performance management approach aimed at accountability and continued to improve customer engagement, billing and collection processes to deliver cash flow.

Key elements of our 2025 financial results include:

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Results of Operations

Operating Revenues

The mix of operating revenues for the years ended December 31 are as follows (in millions):

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The following table provides details associated with the period-to-period change in revenues and average yield for the year ended December 31 (dollars in millions):

The following provides further details about our period-to-period change in revenues:

Average Yield

Collection and Disposal Average Yield — This measure reflects the effect on our revenues from the pricing activities of our collection, transfer and landfill operations, exclusive of volume changes. Revenue growth from Collection and Disposal average yield includes not only base rate changes and environmental and service fee fluctuations, but also (i) certain average price changes related to the overall mix of services, which are due to the types of services provided; (ii) changes in average price from new and lost business and (iii) price decreases to retain customers.

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The details of our revenue growth from Collection and Disposal average yield for the year ended December 31 are as follows (dollars in millions):

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Our overall pricing efforts are focused on keeping pace with the increasing costs and capital intensity of our business. We continue to focus on yield growth in our landfill business. This growth was primarily driven by municipal solid waste, which achieved yield of 6.5% in 2025.

Recycling Processing and Sales and Renewable Energy — Recycling Processing and Sales revenues attributable to yield decreased $166 million in 2025 as compared to prior year. Average market prices for single-stream recycled commodities declined approximately 20% in 2025 as compared to the prior year. Revenues attributable to yield in our Renewable Energy segment increased $11 million in 2025 as compared to prior year primarily driven by increases in natural gas and electricity pricing partially offset by declines in RINs pricing. While there may be short-term fluctuations in our commodity-driven businesses as prices change, we believe that our business models and processes appropriately mitigate the downside risk of changes in commodity prices.

Energy Surcharge and Mandated Fees — These fees increased $44 million as compared to prior year. Mandated fees increased $33 million while fluctuations in energy surcharges drove an increase of $11 million as compared to prior year. The mandated fees are primarily related to fees and taxes assessed by various state, county and municipal government agencies at our landfills and transfer stations, particularly in our West Tier as a result of wildfire activity.

Volume

Our revenues from volume (excluding volumes from acquisitions and divestitures) increased $206 million, or 0.9%, in 2025 as compared to prior year. Volume growth during 2025 was led by our landfill business, with notable increases in special waste and municipal solid waste volumes in the West Tier, particularly driven by wildfire clean-up efforts. Contributions from growth projects also drove gains in our Renewable Energy and Recycling Processing and Sales segments, and volumes in our Strategic Business Solutions business continued to see growth due to our differentiated service model. These gains were partially offset by declines in residential collection volumes, reflecting our strategic exit from lower-margin contracts.

Acquisitions and Divestitures

Acquisitions and divestitures resulted in a net increase in revenues of $2,334 million, or 10.6%, in 2025 as compared to prior year. The increase was primarily due to our acquisition of Stericycle in November 2024. The remaining increase was primarily related to our ongoing investment in tuck-in acquisitions of collection and disposal businesses.

Operating Expenses

Our operating expenses are comprised of (i) labor and related benefits costs (excluding labor costs associated with maintenance and repairs discussed below), which include salaries and wages, bonuses, related payroll taxes, insurance and benefits costs and the costs associated with contract labor; (ii) transfer and disposal costs, which include tipping fees paid to third-party disposal facilities and transfer stations; (iii) maintenance and repairs costs relating to equipment, vehicles

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and facilities and related labor costs; (iv) subcontractor costs, which include the costs of independent haulers who transport waste collected by us to disposal facilities and are affected by variables such as volumes, distance and fuel prices; (v) cost of goods sold, which includes the cost to purchase recycling materials for our Recycling Processing and Sales segment, including certain rebates paid to suppliers; (vi) fuel costs, net of tax credits for alternative fuel, which represent the costs of fuel to operate our truck fleet and landfill operating equipment; (vii) disposal and franchise fees and taxes, which include landfill taxes, municipal franchise fees, host community fees, contingent landfill lease payments and royalties; (viii) landfill operating costs, which include interest accretion on landfill liabilities, interest accretion on and discount rate adjustments to environmental remediation liabilities, leachate and methane collection and treatment, landfill remediation costs and other landfill site costs; (ix) risk management costs, which include general liability, automobile liability and workers’ compensation claims programs costs and (x) other operating costs, which include gains and losses on sale of assets, telecommunications, equipment and facility lease expenses, property taxes, utilities and supplies. Variations in volumes year-over-year, as discussed above in Operating Revenues, in addition to cost inflation, affect the comparability of the components of our operating expenses.

The following table summarizes the major components of our operating expenses for the year ended December 31 (dollars in millions and as a percentage of revenues):

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During 2025, efficiency gains, improved employee turnover, momentum in truck deliveries, the benefit of customer price increases and higher margin special waste volumes, positioned us to significantly reduce our operating expenses as a percentage of operating revenue. The increase in total operating expenses as compared to prior year related primarily to (i) our recent acquisitions, particularly Stericycle; (ii) incremental costs attributable to RNG facilities brought on line during 2025; (iii) increased landfill volumes and (iv) a decrease in gains on the sale of non-strategic assets in 2025. These increases were partially offset by (i) lower residential volumes; (ii) decreased cost of goods sold attributable to lower recycling commodity prices and (iii) continued operating efficiency and cost control initiatives in our Collection and Disposal businesses.

Significant items affecting the comparison of operating expenses between reported periods include:

Labor and Related Benefits — The increase in labor and related benefits costs was driven by the addition of employees as a result of our recent acquisitions and annual employee wage increases. These increases were offset in part, by (i) lower annual incentive compensation and employee benefit expenses; (ii) collection efficiency improvements; (iii) lower residential volumes attributable to intentional shedding of lower margin contracts and (iv) improved driver retention.

Transfer and Disposal Costs — The increase in transfer and disposal costs was primarily due to our recent acquisitions and inflationary cost pressures, which includes increased disposal fees at third-party sites and higher rates from our third-party haulers. These increases were offset, in part, by lower residential volumes attributable to intentional shedding of lower margin contracts.

Maintenance and Repairs — The increase in maintenance and repairs costs was primarily due to (i) additional costs incurred as part of our recent acquisitions; (ii) inflation in parts, supplies and third-party services; (iii) annual wage

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increases and (iv) higher technician headcount. These increases were offset, in part, by an increase in new truck deliveries, which lowered the average fleet age and reduced demand for parts, supplies and third-party services.

Subcontractor Costs — The increase in subcontractor costs was primarily due to additional costs incurred as a part of our recent acquisitions and inflationary cost pressures, particularly labor costs from third-party haulers.

Cost of Goods Sold — The decrease in cost of goods sold was primarily due to a nearly 20% decrease in average market prices for single-stream recycling commodities. This decrease was partially offset by additional pipeline transportation costs attributable to new RNG facilities brought on line during 2025.

Fuel — The increase in fuel costs was primarily due to our recent acquisitions and the expiration of the federal alternative fuel tax credit on December 31, 2024. This increase was partially offset by a decrease of approximately 3% in average market prices for diesel fuel and reduced diesel consumption due to declines in residential collection volumes.

Disposal and Franchise Fees and Taxes — The increase in disposal and franchise fees and taxes was primarily due to an increase in landfill volumes and an overall rate increase in fees and taxes paid to municipalities on our disposal volumes.

Landfill Operating Costs — The increase in landfill operating costs was primarily due to an increase in volumes and higher leachate treatment costs in our West Tier.

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Risk Management — The increase in risk management costs was primarily due to additional claims and premiums attributable to our recent acquisitions and higher insurance recoveries for property claims in the prior year as compared to 2025 offset, in part, by improved claims experience.

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Other — The increase in other operating costs was primarily due to (i) additional expenses attributable to our recent acquisitions; (ii) gains on the sale of real estate in 2024 and, to a much lesser extent, (iii) increased utility costs and property taxes largely attributable to new RNG plants brought on line during 2025.

Selling, General and Administrative Expenses

Our selling, general and administrative expenses consist of (i) labor and related benefits costs, which include salaries, bonuses, related insurance and benefits, contract labor, payroll taxes and equity-based compensation; (ii) professional fees, which include fees for consulting, legal, audit and tax services; (iii) provision for bad debts, which includes allowances for uncollectible customer accounts and collection fees and (iv) other selling, general and administrative expenses, which include, among other costs, facility-related expenses, voice and data telecommunication, advertising, bank charges, computer costs, travel and entertainment, rentals, postage and printing. In addition, the financial impacts of litigation reserves generally are included in our “Other” selling, general and administrative expenses.

The following table summarizes the major components of our selling, general and administrative expenses for the year ended December 31 (dollars in millions and as a percentage of revenues):

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Selling, general and administrative expenses increased from prior year primarily due to our recent acquisitions, particularly Stericycle.

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Significant items affecting the comparison of our selling, general and administrative expenses between reported periods include:

Labor and Related Benefits — The increase in labor and related benefits costs was primarily due to (i) our recent acquisitions; (ii) higher long-term incentive compensation costs and (iii) annual employee wage increases. These increases were partially offset by lower annual incentive compensation and employee benefit expense.

Professional Fees — The increase in professional fees was primarily due to our acquisition and integration of Stericycle.

Provision for Bad Debts — The increase in the provision for bad debts was primarily attributable to our Healthcare Solutions segment, driven by data and system challenges, and an overall increase in revenue and increase in customer account write-offs.

Other — The increase in other expenses was primarily due to increased spend across multiple cost categories, including technology, risk management and advertising, largely driven by the acquisition and integration of Stericycle.

Depreciation, Depletion and Amortization Expenses

The following table summarizes the components of our depreciation, depletion and amortization expenses for the year ended December 31 (dollars in millions and as a percentage of revenues):

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The increase in depreciation of tangible property and equipment was primarily due to our recent acquisitions and increased investments in capital assets such as equipment, primarily within our sustainability businesses, and trucks. The increase in depletion of landfill airspace from prior year was primarily due to increased volumes at our landfills, particularly in our West Tier, and changes in amortization rates from revisions in landfill estimates. The increase in amortization of intangible assets from prior year was primarily due to the incremental amortization of customer relationships and other intangibles acquired as part of the Stericycle acquisition.

Restructuring

Restructuring charges for the year ended December 31, 2025 were primarily due to employee costs related to integration of our acquisition of Stericycle as well as employee retention and severance costs incurred to support automation at our recycling facilities and in certain back-office functions.

(Gain) Loss from Divestitures, Asset Impairments and Unusual Items, Net

The following table summarizes the major components of (gain) loss from divestitures, asset impairments and unusual items, net for the year ended December 31 (in millions):

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During the year ended December 31, 2025, we recognized $248 million of net charges primarily consisting of (i) a $160 million impairment charge related to the decision to temporarily suspend the operations of a business engaged in

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accelerating plastic film and wrap recycling capabilities within our Recycling Processing and Sales segment resulting from significant deterioration of market pricing and demand for post-consumer plastics; (ii) a $45 million impairment charge related to the decision to accelerate the closure of a landfill within our East Tier; (iii) a $16 million goodwill impairment charge related to a business engaged in oil recovery and sludge processing services reflected in Other Ancillary within our Collection and Disposal businesses and (iv) $11 million negotiated payment for early termination of a contract in our Renewable Energy segment.

During the year ended December 31, 2024, we recognized $82 million of net charges primarily consisting of (i) a $54 million charge required to increase the estimated fair value of a liability associated with the expected disposition of an investment the Company holds in a waste diversion technology business; (ii) a $14 million loss associated with the divestiture of a minority investment in a medical waste company within Corporate and Other, in connection with our acquisition of Stericycle and (iii) a $13 million charge pertaining to reserves for loss contingencies in our Corporate and Other segment to adjust an indirect wholly-owned subsidiary’s estimated potential share of the liability for a proposed environmental remediation plan at a closed site.

See Note 2 to the Consolidated Financial Statements for additional information related to the accounting policy and analysis involved in identifying and calculating impairments. See Note 19 to the Consolidated Financial Statements for additional information related to the impact of impairments on the results of operations of our reportable segments.

Income from Operations

The following table summarizes income from operations for the year ended December 31 (dollars in millions):

* Percentage change does not provide a meaningful comparison.

Significant items affecting the comparison of income from operations for our segments between the reported periods include:

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Interest Expense, Net

Our interest expense, net was $912 million and $598 million in 2025 and 2024, respectively. The increase in interest expense, net was primarily related to an increase in our average debt balances and borrowing rates resulting from debt incurred to fund our acquisition of Stericycle. See Note 6 to the Consolidated Financial Statements for more information related to our debt balances.

Income Tax Expense

We recorded income tax expense of $717 million and $713 million in 2025 and 2024, respectively, resulting in effective income tax rates of 20.9% and 20.6% for the years ended December 31, 2025 and 2024, respectively. The comparability of our income tax expense for the reported periods has been primarily affected by the following:

The Inflation Reduction Act of 2022 (“IRA”) contains several tax-related provisions, including with respect to (i) alternative fuel tax credits; (ii) tax incentives for investments in renewable energy production, carbon capture,

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and other climate actions and (iii) the overall measurement of corporate income taxes. Given the complexity and uncertainty around the applicability of the legislation to our specific facts and circumstances, we continue to analyze the IRA provisions to identify and quantify potential opportunities and applicable benefits included in the legislation. The provisions of the IRA related to alternative fuel tax credits secured approximately $60 million of annual pre-tax benefit (recorded as a reduction in our operating expense) from tax credits in 2024. The alternative fuel credit expired at the end of 2024 and will not provide any future benefit to the Company without further legislative action. With respect to the investment tax credit, we expect the cumulative benefit to be between $400 million and $425 million, the remainder of which we expect to recognize through 2027. The expected benefit from the investment tax credit is dependent on a number of estimates and assumptions, including the timing of project completion. Finally, we believe that the production tax credit incentives for investments in renewable energy and carbon capture, as expanded by the IRA, may result in an incremental benefit to the Company, although at this time, the anticipated amount of such benefit has not been quantified due, in part, to the lack of regulatory guidance.

See Note 8 to the Consolidated Financial Statements for more information related to income taxes.

Landfill and Environmental Remediation Discussion and Analysis

We owned or operated 253 solid waste landfills and four hazardous waste landfills as of December 31, 2025 and 257 solid waste landfills and five hazardous waste landfills as of December 31, 2024. For these landfills, the following table reflects changes in capacity, as measured in tons of waste, for the year ended December 31 and remaining airspace, measured in cubic yards of waste, as of December 31 (in millions):

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The depletable tons received at our landfills for the year ended December 31 are shown below (tons in thousands):

As of December 31, 2025, we owned or managed 244 sites that are either in closure or post-closure, have received a certification post-closure, or are regulated under a remedial action plan.

Based on remaining permitted airspace as of December 31, 2025 and projected annual disposal volume, the weighted average remaining landfill life for all of our owned or operated landfills is approximately 38 years. Many of our landfills have the potential for expanded airspace beyond what is currently permitted. We monitor the availability of permitted airspace at each of our landfills and evaluate whether to pursue an expansion at a given landfill based on estimated future disposal volume, disposal prices, construction and operating costs, remaining airspace and likelihood of obtaining an expansion permit. We are seeking expansion permits at 15 of our landfills that meet the expansion criteria outlined in the Critical Accounting Estimates and Assumptions — Landfills section below. Although no assurances can be made that all future expansions will be permitted or permitted as designed, the weighted average remaining landfill life for all owned or operated landfills is approximately 39 years when considering remaining permitted airspace, expansion airspace and projected annual disposal volume.

The number of landfills owned or operated as of December 31, 2025, segregated by their estimated operating lives based on remaining permitted and expansion airspace and projected annual disposal volume, was as follows:

Landfill Assets — We capitalize various costs that we incur to prepare a landfill to accept waste. These costs generally include expenditures for land (including the landfill footprint and required landfill buffer property), permitting, excavation, liner material and installation, landfill leachate collection systems, landfill gas collection systems, environmental monitoring equipment for groundwater and landfill gas, directly related engineering, capitalized interest, and on-site road construction and other capital infrastructure costs. The cost basis of our landfill assets also includes estimates of future costs associated with landfill final capping, closure and post-closure activities, which are discussed further below.

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The changes to the cost basis of our landfill assets and accumulated landfill airspace depletion for the year ended December 31, 2025 are reflected in the table below (in millions):

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As of December 31, 2025, we estimate that we will spend approximately $874 million in 2026, and approximately $1.8 billion in 2027 and 2028 combined, for the construction and development of our landfill assets. The specific timing of landfill capital spending is dependent on future events and spending estimates are subject to change due to fluctuations in landfill waste volumes, changes in environmental requirements and other factors impacting landfill operations.

Landfill and Environmental Remediation Liabilities — As we accept waste at our landfills, we incur significant asset retirement obligations, which include liabilities associated with landfill final capping, closure and post-closure activities. These liabilities are accounted for in accordance with authoritative guidance on accounting for asset retirement obligations and are discussed in Note 2 to the Consolidated Financial Statements. We also have liabilities for the remediation of properties that have incurred environmental damage, which generally was caused by operations or for damage caused by conditions that existed before we acquired operations or a site. We recognize environmental remediation liabilities when we determine that the liability is probable and the cost for the likely remedy can be reasonably estimated.

The changes to landfill and environmental remediation liabilities for the year ended December 31, 2025 are reflected in the table below (in millions):

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Landfill Operating Costs — The following table summarizes our landfill operating costs for the year ended December 31 (in millions):

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Depletion of Landfill Airspace — Depletion of landfill airspace, which is included as a component of depreciation, depletion and amortization expenses, includes the following:

Depletion expense is recorded on a units-of-consumption basis, applying cost as a rate per ton. The rate per ton is calculated by dividing each component of the depletable basis of a landfill (net of accumulated depletion) by the number of tons needed to fill the corresponding asset’s remaining permitted and expansion airspace. Landfill capital costs and closure and post-closure asset retirement costs are generally incurred to support the operation of the landfill over its entire operating life and are, therefore, depleted on a per-ton basis using a landfill’s total permitted and expansion airspace. Final capping asset retirement costs are related to a specific final capping event and are, therefore, depleted on a per-ton basis using each discrete final capping event’s estimated permitted and expansion airspace. Accordingly, each landfill has multiple per-ton depletion rates.

The following table presents our landfill airspace depletion expense on a per-ton basis for the year ended December 31:

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Different per-ton depletion rates are applied at each of our 257 landfills, and per-ton depletion rates vary significantly from one landfill to another due to (i) inconsistencies that often exist in construction costs and provincial, state and local regulatory requirements for landfill development and landfill final capping, closure and post-closure activities and (ii) differences in the cost basis of landfills that we develop versus those that we acquire. Accordingly, our landfill airspace depletion expense measured on a per-ton basis can fluctuate due to changes in the mix of volumes we receive across the Company each year.

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Liquidity and Capital Resources

The Company consistently generates annual cash flow from operations that meets and exceeds our working capital needs, allows for payment of our dividends, investment in the business through capital expenditures and tuck-in acquisitions and funding of strategic sustainability growth investments. We continually monitor our actual and forecasted cash flows, our liquidity and our capital resources, enabling us to plan for our present needs and fund unbudgeted business requirements that may arise during the year. The Company believes that its investment grade credit ratings, diverse investor base, large value of unencumbered assets and modest leverage enable it to obtain adequate financing, and refinance upcoming maturities, as necessary to meet its ongoing capital, operating, strategic and other liquidity requirements. We also have the ability to manage liquidity during periods of significant financial market disruption through temporary modification of our capital expenditure and share repurchase plans.

Summary of Contractual Obligations

The following table summarizes our significant contractual obligations as of December 31, 2025 (other than recorded obligations related to liabilities associated with environmental remediation costs and non-cancelable operating lease obligations, which are discussed further in Notes 3 and 7 to the Consolidated Financial Statements, respectively) and the anticipated effect of these obligations on our liquidity in future years (in millions):

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Summary of Cash and Cash Equivalents, Restricted Funds and Debt Obligations

The following is a summary of our cash and cash equivalents, restricted funds and debt balances as of December 31 (in millions):

Debt — We use long-term borrowings in addition to the cash we generate from operations as part of our overall financial strategy to support and grow our business. We primarily use senior notes and tax-exempt bonds to borrow on a long-term basis, but we also use other instruments and facilities, when appropriate. The components of our borrowings as of December 31, 2025 are described in Note 6 to the Consolidated Financial Statements.

As of December 31, 2025, we had approximately $3.7 billion of debt maturing within the next 12 months, including (i) $1.8 billion of tax-exempt bonds with term interest rate periods that expire within the next 12 months, which is prior to their scheduled maturities; (ii) $1.1 billion of short-term borrowings under our commercial paper program (net of related discount on issuance); (iii) $223 million of 7.1% senior notes that mature in August 2026; (iv) $364 million of 2.6% Canadian senior notes that mature in September 2026 and (v) $200 million of other debt with scheduled maturities within the next 12 months. As of December 31, 2025, we have classified $3.0 billion of debt maturing in the next 12 months as long-term because we have the intent and ability to refinance these borrowings on a long-term basis as supported by the forecasted available capacity under our $3.5 billion long-term U.S. and Canadian revolving credit facility (“$3.5 billion revolving credit facility”). The remaining $711 million of debt maturing in the next 12 months is classified as current obligations.

We have credit lines in place to support our liquidity and financial assurance needs. The following table summarizes our outstanding letters of credit, categorized by type of facility as of December 31 (in millions):

Guarantor Financial Information

WM Holdings has fully and unconditionally guaranteed all of Waste Management, Inc.’s (“WMI’s”) senior indebtedness. WMI has fully and unconditionally guaranteed all of WM Holdings’ senior indebtedness. None of WMI’s

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other subsidiaries have guaranteed any of WMI’s or WM Holdings’ debt. In lieu of providing separate financial statements for the subsidiary issuer and guarantor (WMI and WM Holdings), we have presented the accompanying supplemental summarized combined balance sheet and income statement information for WMI and WM Holdings on a combined basis after elimination of intercompany transactions between WMI and WM Holdings and amounts related to investments in any subsidiary that is a non-guarantor (in millions):

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Summary of Cash Flow Activity

The following is a summary of our cash flows for the year ended December 31 (in millions):

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Net Cash Provided by Operating Activities — Our operating cash flows increased $653 million in 2025 compared to 2024, primarily due to (i) higher earnings in our Collection and Disposal businesses; (ii) contributions from our recent acquisitions and (iii) lower cash tax payments. This increase was partially offset by (i) higher cash interest payments primarily due to additional debt incurred to fund our acquisition of Stericycle; (ii) higher annual incentive compensation payments and (iii) unfavorable changes in working capital, net of effects from acquisitions and divestitures. We continue to execute well in optimizing working capital, particularly in the reduction of days sales outstanding for our Healthcare Solutions business and alignment of our days-to-pay measure with contract terms, though overall working capital changes have been pressured by the Stericycle acquisition.

Net Cash Used in Investing Activities — The most significant items affecting the comparison of our investing cash flows for the periods presented are summarized below:

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Net Cash Provided by (Used in) Financing Activities — The most significant items affecting the comparison of our financing cash flows for the periods presented are summarized below:

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Refer to Note 6 to the Consolidated Financial Statements for additional information related to our debt borrowings and repayments.

We announced in December 2025 that our Board of Directors has authorized up to $3.0 billion in future share repurchases, exclusive of fees, commissions and taxes. This new authorization supersedes and replaces remaining authority under the prior Board of Directors’ authorization for share repurchases announced in December 2023. The amount of future share repurchases executed under our Board of Directors’ authorization is determined in management’s discretion, based on various factors, including our leverage level, net earnings, financial condition and cash required for future business plans, growth and acquisitions.

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In December 2025, we announced that our Board of Directors expects to increase the quarterly dividend from $0.825 to $0.945 per share for dividends declared in 2026. However, all future dividend declarations are at the

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discretion of the Board of Directors and depend on various factors, including our leverage level, net earnings, financial condition, cash required for future business plans, growth and acquisitions and other factors the Board of Directors may deem relevant.

Free Cash Flow

We are presenting free cash flow, which is a non-GAAP measure of liquidity, in our disclosures because we use this measure in the evaluation and management of our business. We define free cash flow as net cash provided by operating activities, less capital expenditures, plus proceeds from divestitures of businesses and other assets, net of cash divested. We believe it is indicative of our ability to pay our quarterly dividends, repurchase common stock, fund acquisitions and other investments and, in the absence of refinancings, to repay our debt obligations. Free cash flow is not intended to replace net cash provided by operating activities, which is the most comparable GAAP measure. We believe free cash flow gives investors useful insight into how we view our liquidity, but the use of free cash flow as a liquidity measure has material limitations because it excludes certain expenditures that are required or that we have committed to, such as declared dividend payments and debt service requirements.

Our calculation of free cash flow and reconciliation to net cash provided by operating activities is shown in the table below for the year ended December 31 (in millions), and may not be calculated the same as similarly-titled measures presented by other companies:

Critical Accounting Estimates and Assumptions

In preparing our financial statements, we make numerous estimates and assumptions that affect the accounting for and recognition and disclosure of assets, liabilities, equity, revenues and expenses. We must make these estimates and assumptions because certain information that we use is dependent on future events, cannot be calculated with precision from available data or simply cannot be calculated. In some cases, these estimates are difficult to determine, and we must exercise significant judgment. In preparing our financial statements, the most difficult, subjective and complex estimates and the assumptions that present the greatest amount of uncertainty relate to our accounting for landfills, environmental remediation liabilities, long-lived asset impairments, intangible asset impairments and the fair value of assets and liabilities acquired in business combinations. Each of these items is discussed in additional detail below and in Note 2 to the Consolidated Financial Statements. Actual results could differ materially from the estimates and assumptions that we use in the preparation of our financial statements.

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Landfills

Accounting for landfills requires that significant estimates and assumptions be made regarding (i) the cost to construct and develop each landfill asset; (ii) the estimated fair value of final capping, closure and post-closure asset retirement obligations, which must consider both the expected cost and timing of these activities and (iii) the determination of each landfill’s remaining permitted and expansion airspace.

Landfill Costs — We estimate the total cost to develop each of our landfill sites to its remaining permitted and expansion airspace. This estimate includes such costs as landfill liner material and installation, excavation for airspace, landfill leachate collection systems, landfill gas collection systems, environmental monitoring equipment for groundwater and landfill gas, directly related engineering, capitalized interest, on-site road construction and other capital infrastructure costs. Additionally, landfill development includes all land purchases for the landfill footprint and landfill buffer property. The projection of these landfill costs is dependent, in part, on future events. The remaining depletable basis of each landfill includes costs to develop a site to its remaining permitted and expansion airspace and includes amounts previously expended and capitalized, net of accumulated airspace depletion, and projections of future purchase and development costs.

Final Capping Costs — We estimate the cost for each final capping event based on the area to be capped and the capping materials and activities required. The estimates also consider when these costs are anticipated to be paid and factor in inflation and discount rates. Our engineering personnel allocate landfill final capping costs to specific final capping events and the capping costs are depleted as waste is disposed of at the landfill. We review these costs annually, or more often if significant facts change. Changes in estimates, such as timing or cost of construction, for final capping events immediately impact the required liability and the corresponding asset. When the change in estimate relates to a fully consumed landfill, the adjustment to the asset must be depleted immediately through expense. When the change in estimate relates to a final capping event at a landfill with remaining airspace, the adjustment to the asset is recognized in income prospectively as a component of landfill airspace depletion.

Closure and Post-Closure Costs — We base our estimates for closure and post-closure costs on our interpretations of permit and regulatory requirements for closure and post-closure monitoring and maintenance. The estimates for landfill closure and post-closure costs also consider when the costs are anticipated to be paid and factor in inflation and discount rates. The possibility of changing legal and regulatory requirements and the forward-looking nature of these types of costs make any estimation or assumption less certain. Changes in estimates for closure and post-closure events immediately impact the required liability and the corresponding asset. When the change in estimate relates to a fully consumed landfill, the adjustment to the asset must be depleted immediately through expense. When the change in estimate relates to a landfill with remaining airspace, the adjustment to the asset is recognized in income prospectively as a component of landfill airspace depletion.

Remaining Permitted Airspace — Our engineers, in consultation with third-party engineering consultants and surveyors, are responsible for determining remaining permitted airspace at our landfills. The remaining permitted airspace is determined by an annual survey, which is used to compare the existing landfill topography to the expected final landfill topography.

Expansion Airspace — We also include currently unpermitted expansion airspace in our estimate of remaining permitted and expansion airspace in certain circumstances. First, for unpermitted airspace to be initially included in our estimate of remaining permitted and expansion airspace, we must believe that obtaining the expansion permit is likely. Second, we must generally expect the initial expansion permit application to be submitted within one year and the final expansion permit to be received within five years, in addition to meeting the following criteria:

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These criteria are evaluated by our field-based engineers, accountants, managers and others to identify potential obstacles to obtaining the permits. Once the unpermitted airspace is included, our policy provides that airspace may continue to be included in remaining permitted and expansion airspace even if certain of these criteria are no longer met as long as we continue to believe we will ultimately obtain the permit, based on the facts and circumstances of a specific landfill. In these circumstances, continued inclusion must be approved through a landfill-specific review process that includes approval by our Chief Financial Officer on a quarterly basis.

When we include the expansion airspace in our calculations of remaining permitted and expansion airspace, we also include the projected costs for development, as well as the projected asset retirement costs related to final capping, closure and post-closure of the expansion in the depletable basis of the landfill.

Once the remaining permitted and expansion airspace is determined in cubic yards, an airspace utilization factor (“AUF”) is established to calculate the remaining permitted and expansion capacity in tons. The AUF is established using the measured density obtained from previous annual surveys and is then adjusted to account for future settlement. The amount of settlement that is forecasted will consider several site-specific factors including current and projected mix of waste type, initial and projected waste density, estimated number of years of life remaining, depth of underlying waste, anticipated access to moisture through precipitation or recirculation of landfill leachate and operating practices. In addition, the initial selection of the AUF is subject to a subsequent multi-level review by our engineering group and the AUF used is reviewed on a periodic basis and revised as necessary. Our historical experience generally indicates that the impact of settlement at a landfill is greater later in the life of the landfill when the waste placed at the landfill approaches its highest point under the permit requirements.

After determining the costs and remaining permitted and expansion capacity at each of our landfills, we determine the per ton rates that will be expensed as waste is received and deposited at the landfill by dividing the costs by the corresponding number of tons. We calculate per ton depletion rates for each landfill for assets associated with each final capping event, for assets related to closure and post-closure activities and for all other costs capitalized or to be capitalized in the future. These rates per ton are updated annually, or more often, as significant facts change.

It is possible that actual results, including the amount of costs incurred, the timing of final capping, closure and post-closure activities, our airspace utilization or the success of our expansion efforts could ultimately turn out to be significantly different from our estimates and assumptions. To the extent that such estimates, or related assumptions, prove to be significantly different than actual results, lower earnings may be experienced due to higher depletion rates or higher expenses; or higher earnings may result if the opposite occurs. Most significantly, if it is determined that expansion capacity should no longer be considered in calculating the recoverability of a landfill asset, we may be required to recognize an asset impairment or incur significantly higher depletion expense. If at any time management makes the decision to abandon the expansion effort, the capitalized costs related to the expansion effort are expensed immediately.

Environmental Remediation Liabilities

A significant portion of our operating costs and capital expenditures could be characterized as costs of environmental protection. The nature of our operations, particularly with respect to the construction, operation and maintenance of our landfills subjects us to an array of laws and regulations relating to the protection of the environment. Under current laws and regulations, we may have liabilities for environmental damage caused by our operations, or for damage caused by conditions that existed before we acquired a site. In addition to remediation activity required by state or local authorities, such liabilities include potentially responsible party (“PRP”) investigations. The costs associated with these liabilities can include settlements, certain legal and consultant fees, as well as incremental internal and external costs directly associated with site investigation and clean up.

Where it is probable that a liability has been incurred, we estimate costs required to remediate sites based on site-specific facts and circumstances. We routinely review and evaluate sites that require remediation and determine our estimated cost for the likely remedy based on a number of estimates and assumptions. Next, we review the same type of

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information with respect to other named and unnamed PRPs. Estimates of the costs for the likely remedy are then either developed using our internal resources or by third-party environmental engineers or other service providers. Internally developed estimates are based on:

Refer to Note 10 to the Consolidated Financial Statements for additional information on our environmental liabilities.

Fair Value of Nonfinancial Assets and Liabilities

Significant estimates are made in determining the fair value of long-lived tangible and intangible assets (i.e., property and equipment, intangible assets and goodwill) during the impairment evaluation process. In addition, the majority of assets acquired and liabilities assumed in a business combination are required to be recognized at fair value under the relevant accounting guidance.

Fair value is computed using several factors, including projected future operating results, economic projections, anticipated future cash flows, comparable marketplace data and the cost of capital. There are inherent uncertainties related to these factors and to our judgment in applying them in our analysis. However, we believe our methodology for estimating the fair value of our reporting units is reasonable.

Property and Equipment, Including Landfills and Definite-Lived Intangible Assets — We monitor the carrying value of our long-lived assets for potential impairment on an ongoing basis and test the recoverability of such assets generally using significant unobservable (“Level 3”) inputs whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. These events or changes in circumstances, including management decisions pertaining to such assets, are referred to as impairment indicators. If an impairment indicator occurs, we perform a test of recoverability by comparing the carrying value of the asset or asset group to its undiscounted expected future cash flows. If cash flows cannot be separately and independently identified for a single asset, we will determine whether an impairment has occurred for the group of assets for which we can identify the projected cash flows. If the carrying values are in excess of undiscounted expected future cash flows, we measure any impairment by comparing the fair value of the asset or asset group to its carrying value and the difference is recorded in the period that the impairment indicator occurs. Fair value is generally determined by considering (i) internally developed discounted projected cash flow analysis of the asset or asset group; (ii) third-party valuations and/or (iii) information available regarding the current market for similar assets. Estimating future cash flows requires significant judgment and projections may vary from the cash flows eventually realized, which could impact our ability to accurately assess whether an asset has been impaired.

The assessment of impairment indicators and the recoverability of our capitalized costs associated with landfills and related expansion projects require significant judgment due to the unique nature of the waste industry, the highly regulated permitting process and the sensitive estimates involved. During the review of a landfill expansion application, a regulator may initially deny the expansion application although the expansion permit is ultimately granted. In addition, management may periodically divert waste from one landfill to another to conserve remaining permitted landfill airspace, or a landfill may be required to cease accepting waste, prior to receipt of the expansion permit. However, such events occur in the ordinary course of business in the waste industry and do not necessarily result in impairment of our landfill assets because, after consideration of all facts, such events may not affect our belief that we will ultimately obtain the expansion permit. As a result, our tests of recoverability, which generally make use of a probability-weighted cash flow estimation approach, may indicate that no impairment loss should be recorded.

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Indefinite-Lived Intangible Assets, Including Goodwill — At least annually using a measurement date of October 1, and more frequently if warranted, we assess the indefinite-lived intangible assets including the goodwill of our reporting units for impairment using Level 3 inputs.

We may perform either a qualitative or quantitative assessment; however, if a qualitative assessment is performed and we determine that the fair value of a reporting unit is more likely than not to be less than its carrying amount, a quantitative assessment is performed. The quantitative assessment compares the estimated fair value of a reporting unit to its carrying amount, including goodwill. An impairment charge is recognized if the reporting unit’s estimated fair value was less than its carrying amount. Fair value is typically estimated using an income approach using Level 3 inputs. However, when appropriate, we may also use a market approach. The income approach is based on the long-term projected future cash flows of the reporting units. We discount the estimated cash flows to present value using a weighted average cost of capital that considers factors such as market assumptions, the timing of the cash flows and the risks inherent in those cash flows. We believe that this approach is appropriate because it provides a fair value estimate based upon the reporting units’ expected long-term performance considering the economic and market conditions that generally affect our business. The market approach estimates fair value by measuring the aggregate market value of publicly-traded companies with similar characteristics to our business as a multiple of their reported earnings. We then apply that multiple to the reporting units’ earnings to estimate their fair values. We believe that this approach may also be appropriate in certain circumstances because it provides a fair value estimate using valuation inputs from entities with operations and economic characteristics comparable to our reporting units.

Reporting units within our Healthcare Solutions segment are more sensitive than others to changes in estimated fair values, specifically changes driven by revenue growth, cost and discount rate assumptions, as compared to our other reporting units due to the fact that the Stericycle business comprising these reporting units was recently acquired. As such, the reporting units within our Healthcare Solutions segment have a greater risk of impairment should their operations or market conditions experience a significant downturn.

Acquisitions — In accordance with the acquisition method of accounting, the purchase price paid for an acquisition is allocated to the assets and liabilities acquired based upon their estimated fair values as of the acquisition date, with the excess of the purchase price over the net assets acquired recorded as goodwill. When we are in the process of valuing all of the assets and liabilities acquired in an acquisition, there can be subsequent adjustments to our estimates of fair value and resulting preliminary purchase price allocation. Generally, the valuation of our acquired assets and liabilities rely on complex estimates and assumptions.

Acquisition-date fair value estimates are revised as necessary if, and when, additional information regarding these contingencies becomes available to further define and quantify assets acquired and liabilities assumed. Subsequent to finalization of purchase accounting, these revisions are accounted for as adjustments to income from operations. All acquisition-related transaction costs are expensed as incurred. See Note 17 to the Consolidated Financial Statements for additional information related to our acquisitions.

See Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — (Gain) Loss from Divestitures, Asset Impairments and Unusual Items, Net. See Note 11 to the Consolidated Financial Statements for additional information related to Asset Impairments and Unusual Items.

Inflation

Variability in economic conditions, including inflation, interest rates, employment trends, and supply chain reliability, can create risk and uncertainty in financial outlook. We take proactive steps to recover and mitigate inflationary cost pressures through our overall pricing efforts and by managing our costs through efficiency, labor productivity, and investments in technology to automate certain aspects of our business. These efforts may not be successful for various reasons including the pace of inflation, operating cost inefficiencies, market responses, and contractual limitations, such as the timing lag in our ability to recover increased costs under certain contracts that are tied to a price escalation index with a lookback provision.

Refer to Item 1A. Risk Factors for further discussion.

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