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GAO-25-108146 1 (July 23, 2025)

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G      go             U.S. GOVERNMENT ACCOUNTABILITY OFFICE
441 G St. N.W.
Washington, DC  20548


July 23, 2025

Mr. Christopher Johns
Deputy Chief Financial Officer
U.S. Department  of Energy
1000  Independence Ave., SW
Washington,  DC 20585

U.S. Consolidated  Financial Statements:  Key Issues for the Department  of Energy

Dear Mr. Johns:

As the Department of Energy's (DOE) Deputy  Chief Financial Officer, you have an important
role in helping to ensure that reliable and complete federal financial information is available. The
purpose of this letter is to highlight important issues for your awareness related to financial
management   in the federal government.

GAO  is responsible for conducting the annual audit of the U.S. government's consolidated
financial statements, or CFS.1 On January 16, 2025, we issued a disclaimer of opinion on these
statements for fiscal years 2024 and 2023.2 The consolidated financial statements are compiled
from federal entity financial statements and other federal entity information. As such, federal
entities, including DOE, have a key role in supporting financial reporting at the government-wide
level.

DOE's  strong and sustained commitment is critical to addressing the following key issues that
affect the U.S. government's consolidated financial statements.

DOE's  qualified opinion and material weakness:  DOE   received a qualified opinion on its
fiscal year 2024 financial statements. According to DOE's auditor, the DOE Office of
Environmental Management   was  unable to adequately support $39.1 billion of its environmental
liability balance as of September 30, 2024, with valid cost estimates, schedules, and
assumptions. This qualification contributed to us being unable to express an opinion on the
consolidated financial statements. It is important that DOE address the issues causing the
qualified opinion to support accurate reporting for the consolidated financial statements.

DOE's  auditor also reported a material weakness in the Office of Environmental Management's
internal controls over its environmental liability, including deficiencies related to headquarters
oversight of field site estimates. The Office of Environmental Management is responsible for
nearly 80 percent of DOE's $544 billion environmental liability balance as of September 30,
2024. Since 2017, the U.S. government's environmental liability has been on our High-Risk List
of agencies and program areas that are vulnerable to fraud, waste, abuse, and mismanagement


1The Secretary of the Treasury, in coordination with the Director of the Office of Management and Budget, is required
to annually submit audited financial statements for the executive branch of the U.S. government to the President and
Congress. These statements, as submitted, also include the legislative and judicial branches.

2GAO, Financial Audit: FY 2024 and FY 2023 Consolidated Financial Statements of the U.S. Government, GAO-25-
107421 (Washington, D.C.: Jan. 16, 2025).


GAO-25-108146  CFS Issues for DOE


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