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S. 4151

BillFederalSenateIn Committee
Unfunded Mandates Accountability and Transparency Act of 2026
About This Bill
Committee
Latest Action · March 19, 2026
Read twice and referred to the Committee on Homeland Security and Governmental Affairs.
Congress
119th (2025–2027)
Introduced
March 19, 2026
Cosponsors (1)
0D 1R
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Summary

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The Unfunded Mandates Accountability and Transparency Act of 2026 strengthens oversight of federal regulations by requiring agencies to choose the regulatory approach that produces the greatest net benefits when issuing major rules, unless the Office of Information and Regulatory Affairs grants an exception. Agencies can only deviate from this requirement if they identify and justify unquantifiable factors—such as constitutional rights impacts—or demonstrate that their chosen alternative provides greater benefits or cost savings. The new requirements take effect 120 days after the bill becomes law, giving agencies and the public four months to prepare for the changes. This legislation affects all federal agencies that issue regulations and aims to increase transparency and accountability in the regulatory process.

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