WASTE MANAGEMENT INC Annual Report (Amendment), Year Ended Dec 31, 2021

Waste Management Inc. (WM) filed an amendment to its 2021 Form 10-K on March 28, 2022, primarily addressing Item 9A, Controls and Procedures, and Item 15, Exhibits. The core of this amendment reaffirms management's conclusion regarding the effectiveness of the company's disclosure controls and procedures and its internal control over financial reporting as of December 31, 2021. Management, with the participation of principal executive and financial officers, evaluated these controls using the COSO framework and found them to be effective at a reasonable assurance level. This filing assures investors that WM's financial reporting mechanisms are robust and reliable. The independent registered public accounting firm, Ernst & Young LLP, also audited the effectiveness of the internal control over financial reporting, concurring with management's assessment. Importantly, there were no changes identified in the internal control over financial reporting during the fourth quarter of 2021 that materially impacted or were likely to materially impact these controls. The amendment also lists various exhibits, including CEO and CFO certifications and Inline XBRL filings, which are standard for SEC reporting.