Congress tightens oversight of $2.5B+ transportation projects with peer review and transparency rule
H.R. 6435 — Transportation Megaprojects Accountability and Oversight Act · Filed by Mark DeSaulnier (D-CA) · 1 cosponsor · Introduced Dec 4, 2025 · Referred to committee
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What it does
This bill requires large transportation projects costing $2.5 billion or more to submit comprehensive risk management plans, establish independent peer review groups of at least 5 experts to oversee them, and publish project details and engineer credentials online. It also directs the Transportation Research Board to study megaproject problems and recommend improvements to federal oversight within 3 years.
Why we flagged it
The bill's core mechanism is procedural oversight—requiring risk management plans, peer review, and transparency disclosures for large federal transportation projects. It does not fund, defund, or redirect money; it adds governance requirements to existing federal transportation assistance.
What the text implies
- Peer review groups must be conflict-free, which may increase costs for project sponsors seeking qualified independent experts, potentially delaying project starts.
- The 1-year implementation delay means the bill does not apply to projects already authorized, creating a two-tier system for older vs. newer megaprojects.
- The Transportation Research Board study may recommend further restrictions or oversight mechanisms beyond what this bill mandates, setting up future legislative expansion.
- Public disclosure of engineer names and credentials could expose individual professionals to liability or political pressure if projects encounter problems.
Section numbers refer to the bill text the analysis read — linked under Primary records below.
Who it affects
The bill strengthens public accountability and transparency for large federal transportation projects by requiring independent expert oversight, regular cost reporting, and public disclosure of project management details. Citizens benefit from reduced risk of cost overruns and project failures that waste public money, and from visibility into how their tax dollars are spent on major infrastructure.
Named in the bill
Department of Transportation, Transportation Research Board, National Academies, House Committee on Transportation and Infrastructure, Senate Committee on Environment and Public Works
Where it stands
1 cosponsor: 1 Republicans.
- Dec 4, 2025 — Introduced · Congress.gov: “Introduced in House”
- Dec 4, 2025 — Referred to House Committee on Transportation and Infrastructure · Congress.gov: “Referred to the House Committee on Transportation and Infrastructure”
Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.
How this was measured
Analysis — Quorum's AI read the bill text published by Congress.gov (5,237 characters) on May 21, 2026. Section numbers in the findings refer to that text, linked below; transparency and hidden-provision scores are compared against the median of 16,222 analysed bills.
Status and sponsors — Congress.gov's bill record — actions, committee referrals and cosponsors — loaded nightly. The timeline shows status changes, not every procedural action.
As of — page rendered 2026-10-20.
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