GAO flags 24 priority-open recommendations for DOE—nuclear, cleanup, energy
United States Federal Watchdogs and Public Spending – GAO: DOE has 270 open recommendations, including 24 “priority open,” covering nuclear, cleanup, energy.
GAO’s latest follow-up on Department of Energy accountability—published July 2, 2026 and publicly released July 9—finds DOE still has a large backlog of “open” watchdog recommendations: 270 in total, including 24 that GAO designates “priority open.” Those unresolved items cluster around three pressure points: nuclear modernization, environmental cleanup liabilities, and how DOE manages energy-security programs and complex nuclear projects.
What GAO is counting (and why “open” matters)
GAO says priority open recommendations are the recommendations that warrant priority attention from heads of key departments or agencies because, if implemented, they could save large amounts of money; improve decision-making on major issues; eliminate mismanagement, fraud, and abuse; or make progress toward addressing a high-risk or duplication issue.
GAO reports that, as of June 2026, DOE has 270 open recommendations in total, including 24 priority recommendations. Since GAO’s April 2025 priority letter, DOE implemented 5 of the priority recommendations. GAO also says its latest update removed priority status from two recommendations and added one new priority recommendation—bringing the total back to 24.
Priority area 1: Nuclear modernization still has cost and schedule risk
GAO says DOE’s National Nuclear Security Administration has faced “significant delays and cost overruns” modernizing the nation’s nuclear security enterprise and weapons in the U.S. stockpile. GAO points to a 2025 Congressional Budget Office estimate that this effort will cost DOE $295 billion over the next 10 years.
GAO’s priority focus here is management fundamentals: it recommends that NNSA develop a life-cycle cost estimate for establishing its pit production capability that aligns with GAO best practices for cost estimating.
Priority area 2: Environmental cleanup liabilities remain a live accountability risk
GAO frames DOE environmental liabilities as an issue that has been growing for the past 20 years and ties remaining work to its High-Risk List. GAO says DOE is responsible for $538.6 billion of the federal government’s total $667.3 billion in reported environmental liability for fiscal year 2025.
GAO’s priority recommendations in this area are aimed at speeding smarter cleanup decisions. It recommends that DOE develop complex-wide analyses that identify optimal waste-disposal strategies and alternatives.
GAO also flags how oversight can affect operational choices. For example, it recommends DOE pause work at a Hanford waste treatment facility until the department takes several actions, including considering the results of an independent analysis of high-level waste treatment options—potentially saving billions.
Priority area 3: Energy security and program management need tighter oversight
GAO links remaining work to both national energy risk and day-to-day management of large projects. It recommends that DOE conduct periodic reviews of the Strategic Petroleum Reserve to provide Congress timely information on the costs and benefits of various reserve sizes to help ensure national energy security.
For large nuclear energy demonstration projects, GAO pushes for better oversight—recommending improvements to DOE’s oversight so project performance improves and DOE applies project management best practices more consistently.
GAO also notes that some of these recommendations connect to acquisition and program management challenges for NNSA and DOE’s Office of Environmental Management.
Why this is part of a longer-running accountability theme
GAO’s DOE priority letter is part of a broader accountability track: GAO has previously reported that DOE’s acquisition planning and contracting practices can raise costs and delays—for example, when it is not always clear that offices reviewed lessons learned from prior acquisitions during acquisition planning.
What to watch next: measurable implementation, not just promises
GAO says copies of the letter are being sent to the appropriate congressional committees. The next accountability test is likely to show up in oversight and budget questions: whether DOE provides action plans, measurable implementation steps, and timelines for closing GAO’s priority-open gaps.
For public accountability-minded readers, the key takeaway is that GAO treats “open” recommendations as remaining work to be completed—not proof that DOE has already fixed everything.
Sources
- GAO product page — Priority Open Recommendations: Department of Energy (GAO-26-109001)
- GAO-25-107743 — High-Risk Series: Acquisition and Program Management for DOE’s NNSA and Office of Environmental Management
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