S2235-119

Reported

To amend the Energy Policy Act of 2005 to reauthorize the diesel emissions reduction program.

119th Congress Introduced Jul 10, 2025

Legislative Progress

Reported
Introduced Committee Passed
Oct 29, 2025

Reported by Mrs. Capito, without amendment

Jul 10, 2025

Mr. Whitehouse (for himself, Mrs. Capito, Mr. Booker, Mr. Sullivan, …

Summary

What This Bill Does

This bill extends the Diesel Emissions Reduction Act program through 2029. The program, originally established in 2005, provides federal grants to help upgrade or replace older diesel engines with cleaner technology. This reauthorization allows the Environmental Protection Agency to continue funding these projects for another five years.

Who Benefits and How

Companies that manufacture diesel emission control devices and retrofit equipment benefit by gaining access to a continued stream of customers funded by federal grants. Fleet operators, including trucking companies, bus services, and construction firms, benefit by receiving grants to offset the cost of upgrading their diesel engines. State and local environmental agencies benefit from additional federal funding to administer local diesel emission reduction programs.

Who Bears the Burden and How

Federal taxpayers bear the cost through continued appropriations for the program. The exact funding amount depends on future congressional appropriations, but the program has historically received tens of millions of dollars annually. Older diesel equipment operators may face indirect pressure to upgrade as grant programs expand.

Key Provisions

  • Extends authorization for the Diesel Emissions Reduction Act program from 2024 to 2029
  • Maintains the existing grant structure for diesel emission reduction projects
  • Continues eligibility for fleet operators, state and local governments, and nonprofit organizations
  • Does not change program requirements or add new mandates
Model: claude-sonnet-4.5
Generated: Dec 25, 2025 20:21

Evidence Chain:

This summary is derived from the structured analysis below. See "Detailed Analysis" for per-title beneficiaries/burden bearers with clause-level evidence links.

Primary Purpose

Extends the authorization period for the Diesel Emissions Reduction Act program from 2024 to 2029

Policy Domains

Environment Energy Transportation

Legislative Strategy

"Continuity of environmental programs - extending funding authorization for diesel emissions reduction initiatives"

Likely Beneficiaries

  • Diesel engine retrofitters and manufacturers
  • State and local air quality programs
  • Fleet operators seeking emission reduction grants
  • Environmental technology companies

Likely Burden Bearers

  • Taxpayers (through continued program appropriations)
  • Older diesel equipment operators who may face pressure to upgrade

Bill Structure & Actor Mappings

Who is "The Secretary" in each section?

Domains
Environment Energy Transportation
Actor Mappings
"the_administrator"
→ Administrator of the Environmental Protection Agency

Key Definitions

Terms defined in this bill

1 term
"N/A" §none

This bill contains no new definitions. It references the existing Diesel Emissions Reduction Act of 2005 (42 U.S.C. 16137)

We use a combination of our own taxonomy and classification in addition to large language models to assess meaning and potential beneficiaries. High confidence means strong textual evidence. Always verify with the original bill text.

Learn more about our methodology