Politisphere

S. 456: STEAM Act

A Senate bill (S.) in the 119th U.S. Congress.

Overview

Congress119th U.S. Congress (2025–2026)
TypeSenate bill (S.)
Originating chamberSenate
Introduced2025-02-06
SponsorSen. Cortez Masto, Catherine [D-NV]
Policy areaEnergy
Cosponsors3
Latest action2025-02-06 — Read twice and referred to the Committee on Energy and Natural Resources.
Last updated2026-03-24

Summary

Official summary (Introduced in Senate, 2025-02-06):

Streamlining Thermal Energy through Advanced Mechanisms Act or the STEAM Act

This bill expedites the environmental review of certain geothermal energy activities under the National Environmental Policy Act of 1969 (NEPA). Specifically, the bill expands the Energy Policy Act of 2005 to include certain geothermal exploration or development activities in an existing categorical exclusion from NEPA for certain oil or gas activities. 

A categorical exclusion applies to a class of actions that do not require an environmental assessment nor an environmental impact statement under NEPA.

The categorical exclusion established by the bill applies to drilling a geothermal well (1) in an area where drilling has occurred previously within the five years prior to the date when drilling begins; or (2) within a developed field for which an approved land use plan or environmental document prepared under NEPA determined drilling to be a reasonably foreseeable activity, so long as the plan or document was approved within the five years prior to the date when drilling begins.

Cosponsors (3)

NameParty / state
Lisa Murkowski R AK (original cosponsor) 2025-02-06
Steve Daines R MT 2025-03-27
John Hoeven R ND 2025-04-08

Full text & official record

The official bill text, section-by-section summary, amendments, committee reports, and the complete legislative timeline for S. 456 are published by Congress on congress.gov.

View S. 456 on congress.gov →

Frequently asked questions

What is S. 456?

S. 456 is a Senate bill (S.) introduced in the 119th U.S. Congress, originating in the Senate. Official title: STEAM Act.

Where can I read the full bill text?

The full text, cosponsors, amendments, and legislative status for S. 456 are available on congress.gov.

Bill data: congress.gov API (official congressional records).