The Dam Assessment and Mitigation Support (DAMS) Act amends the National Dam Safety Program Act in three narrow ways: it removes paragraph (4) of 33 U.S.C. 467f(e); it specifies that the federal priority system for rehabilitation of high-hazard-potential dams must be used by any State that has not adopted its own risk-based priority system; and it extends the authorization date in the statute for rehabilitation assistance from 2026 to 2031. The bill does not specify new funding amounts or add new substantive grant programs; it changes statutory defaults and extends the authorization window for existing rehabilitation assistance.
For stakeholders—state dam-safety programs, federal grant managers, dam owners, and downstream communities—these are mostly operational adjustments. The most consequential change is the statutory clarification that the federal priority system becomes the default for states without a state-developed risk-based system, a shift that standardizes how certain dams are prioritized for federal-supported rehabilitation.
The deletion of Section 8(e)(4) and the longer authorization horizon create administrative and budgeting questions that agencies and states will need to resolve in guidance and grant implementation.
At a Glance
What It Does
The bill deletes paragraph (4) of 33 U.S.C. 467f(e), makes the federal priority system the required default for states that lack their own risk-based priority system under 33 U.S.C. 467f–2(f), and amends 33 U.S.C. 467f–2(j)(4) to move the authorization cutoff year from 2026 to 2031. It does not set new appropriation amounts.
Who It Affects
State dam-safety programs (particularly those without state risk-based priority systems), federal agencies that administer dam rehabilitation assistance, owners/operators of high-hazard-potential dams who seek federal rehabilitation support, and communities downstream reliant on prioritized mitigation work.
Why It Matters
The bill establishes a clear federal default for prioritizing high-hazard dam rehabilitation where states lack their own risk-based system, which can change which projects qualify for federal attention. Extending the authorization year preserves the statutory authority to fund rehabilitation programs for an additional five years but leaves funding levels to future appropriations.
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What This Bill Actually Does
The DAMS Act makes three targeted amendments to the National Dam Safety Program Act. First, it removes paragraph (4) from Section 8(e) of the Act (codified at 33 U.S.C. 467f(e)).
Because the bill text itself does not restate the deleted language, stakeholders must read the preexisting statute to identify exactly what policymakers removed; the practical effect is that one existing statutory provision is eliminated, which may alter program rules or eligibility that previously relied on that paragraph.
Second, the bill alters the rehabilitation-of-high-hazard-potential-dams provisions by changing the priority rule in 33 U.S.C. 467f–2(f). Where a State has not developed and uses a risk-based priority system of its own, the State must use the federal priority system established under the statute.
In short, the federal priority system becomes the fallback or default for states lacking a state-specific risk-based framework; states that already use a state-developed risk-based priority system retain that approach.Third, the bill extends the statutory authorization horizon in the rehabilitation provisions. It amends 33 U.S.C. 467f–2(j)(4) by replacing the year "2026" with "2031," thereby authorizing the relevant program provisions through 2031.
The amendment preserves the underlying program authority for an additional five years but does not appropriate funds or set specific grant amounts—actual funding still requires separate appropriation acts.Taken together, these are technical but consequential changes: they standardize a default prioritization mechanism for federal-supported rehabilitation projects where states lack their own system, remove an identified statutory paragraph that may have governed an aspect of the program, and extend the period during which Congress may appropriate rehabilitation funds under the statute. Implementation details—such as how federal and state priority systems will be harmonized, transitional requirements, and agency guidance after the deletion of Section 8(e)(4)—are left to administrative action and future appropriations decisions.
The Five Things You Need to Know
The bill deletes paragraph (4) of 33 U.S.C. 467f(e), removing an existing statutory provision from the National Dam Safety Program Act.
It amends 33 U.S.C. 467f–2(f) to require any State that does not use a state-developed risk-based priority system to use the federal priority system for identifying high-hazard-potential dams for rehabilitation.
It changes 33 U.S.C. 467f–2(j)(4) by replacing the authorization expiration year "2026" with "2031," extending the statute’s authorization window by five years.
The text does not authorize specific appropriations amounts or create new grant programs; it adjusts defaults and the authorization timeframe within the existing statutory framework.
By making the federal priority system the default only for states without a state-developed risk-based system, the bill preserves state-developed risk-based frameworks while standardizing treatment for states that lack them.
Section-by-Section Breakdown
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Short title — 'DAMS Act'
This short provision names the statute the 'Dam Assessment and Mitigation Support Act' or 'DAMS Act.' Practically, the short title is an organizational element used in citations and does not change substantive program rules.
Removes paragraph (4) of the National Dam Safety Program provisions
The bill instructs statutory text to delete paragraph (4) from Section 8(e) of the National Dam Safety Program Act. The removal is direct: it does not replace or redefine the deleted text. Because the bill does not summarize what paragraph (4) contained, agencies, grant applicants, and legal counsel will need to compare the pre-amendment statute with the post-amendment text to determine operational impacts, such as changes to eligibility, reporting, or program requirements that previously referenced that paragraph.
Establishes the federal priority system as the default where states lack their own risk-based system
This amendment inserts language making the federal priority system the required tool for identifying high-hazard-potential dams eligible for rehabilitation assistance in any State that has not developed and uses a risk-based priority system of its own. The practical implication is a two-tier approach: states with their own risk-based priority systems keep local control; states without such systems must adopt the federal system for the purposes of these rehabilitation provisions. The change clarifies which mechanism determines project prioritization for federal support in the absence of state-developed criteria.
Extends authorization cutoff year from 2026 to 2031
This change updates the authorization clause by moving the year cited for the end of authorized activity from 2026 to 2031. It preserves the statutory basis for making rehabilitation assistance available for an additional five years. Importantly, this is an authorization change only; actual money must still be appropriated by Congress in regular appropriation vehicles to fund program activity under the extended authorization.
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Explore Infrastructure in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- States without a state-developed risk-based priority system — they receive a clear, federal default mechanism to identify and prioritize high-hazard-potential dams for rehabilitation, reducing uncertainty about how to qualify projects for federal-supported assistance.
- Communities downstream of high-hazard-potential dams — the clarified priority process and extended authorization window increase the likelihood that rehabilitation projects can be prioritized and funded over the next five years, improving mitigation planning.
- Federal program administrators (e.g., agencies administering dam rehabilitation grants) — the statutory clarification reduces ambiguity about which priority system to apply when states lack their own, simplifying grant evaluation and consistency across recipients.
- Entities seeking federal rehabilitation assistance (public dam owners, small utilities, municipalities) — a predictable default prioritization mechanism may make it clearer when their projects are likely to be considered for federal support.
Who Bears the Cost
- Federal Treasury/Congressional appropriations process — extending authorization to 2031 keeps a statutory spending authority alive and may create pressure to provide funding in future budgets, even though the bill does not appropriate funds itself.
- State agencies that currently lack risk-based priority systems — such states will need to adopt the federal priority system for rehabilitation purposes, which could require staff time, technical adjustments, and coordination costs.
- Dam owners prioritized under the federal system — if the federal default shifts prioritization in ways that accelerate required rehabilitation, owners may face earlier cost-sharing obligations or pressure to move projects forward.
- Federal grant administrators — implementing the deleted paragraph (4) removal and harmonizing federal and state prioritization approaches will require rulemaking or guidance, imposing administrative workload without additional implementation funding.
Key Issues
The Core Tension
The central dilemma is between federal standardization and state flexibility: the bill reduces ambiguity by making a federal priority system the default for states without their own risk-based frameworks, which promotes consistency, but that standardization can overlook local conditions and impose administrative burdens on states and owners; simultaneously, the statute extends authorization for rehabilitation assistance without committing funds, leaving states and communities to weigh regulatory clarity against the practical uncertainty of future appropriations.
The bill is short and surgical, but that brevity creates implementation questions. Deleting paragraph (4) of 33 U.S.C. 467f(e) is an explicit textual change with unspecified operational consequences: unless agencies and stakeholders check the pre-amendment statute, they cannot tell whether the deletion removes a constraint, an eligibility rule, a reporting requirement, or something procedural.
That uncertainty raises short-term compliance and interpretation costs.
Making the federal priority system the default for states lacking a risk-based system offers standardization but risks a blunt application across jurisdictions with different risk profiles and data capacity. States with limited technical resources may accept the federal system, but the federal system may not align with local hazard, population, or infrastructure conditions.
The extension of the authorization year preserves legislative authority to fund rehabilitation through 2031, but because the bill contains no appropriation language, program continuity depends on appropriators—creating a mismatch between statutory authorization and practical funding reality. Finally, the bill leaves key implementation details—transition rules, how to reconcile differing prioritization results, and whether any federal technical assistance will be provided to states adopting the federal default—unaddressed.
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