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SB509 • 2025

Prohibits the Environmental Quality Commission from adopting motor vehicle emission standards to implement California standards requiring that some or all medium- or heavy-duty vehicles sold in the state be zero-emission vehicles.

Prohibits the Environmental Quality Commission from adopting motor vehicle emission standards to implement California standards requiring that some or all medium- or heavy-duty vehicles sold in the state be zero-emission vehicles.

Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Senator Smith DB
Last action
2025-06-27
Official status
In Senate Committee
Effective date
Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

Prohibits the Environmental Quality Commission from adopting motor vehicle emission standards to implement California standards requiring that some or all medium- or heavy-duty vehicles sold in the state be zero-emission vehicles.

Digest: This Act stops the EQC from adopting, and stops the DEQ from enforcing, California rules that require some trucks sold in the state to have no emissions.

What This Bill Does

  • Digest: This Act stops the EQC from adopting, and stops the DEQ from enforcing, California rules that require some trucks sold in the state to have no emissions.
  • (Flesch Readability Score: 60.3).
  • Prohibits the Environmental Quality Commission from adopting motor vehicle emission standards to implement California standards requiring that some or all medium- or heavy-duty vehicles sold in the state be zero-emission vehicles.
  • Prohibits the Department of Environmental Quality from enforcing such standards adopted prior to the effective date of the Act.

Limits and Unknowns

  • This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Bill History

  1. 2025-06-27 Senate

    In committee upon adjournment.

  2. 2025-01-17 Senate

    Referred to Energy and Environment.

  3. 2025-01-13 Senate

    Introduction and first reading. Referred to President's desk.

Official Summary Text

Digest: This Act stops the EQC from adopting, and stops the DEQ from enforcing, California rules that require some trucks sold in the state to have no emissions. (Flesch Readability Score: 60.3).
Prohibits the Environmental Quality Commission from adopting motor vehicle emission standards to implement California standards requiring that some or all medium- or heavy-duty vehicles sold in the state be zero-emission vehicles. Prohibits the Department of Environmental Quality from enforcing such standards adopted prior to the effective date of the Act.
Relating to: Relating to motor vehicle emission standards.
Current location: In Senate Committee

Current Bill Text

Read the full stored bill text
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83rd OREGON LEGISLATIVE ASSEMBLY--2025 Regular Session
Senate Bill 509
Sponsored by Senator SMITH DB (Presession filed.)
SUMMARY
The following summary is not prepared by the sponsors of the measure and is not a part of the body thereof subject
to consideration by the Legislative Assembly. It is an editor’s brief statement of the essential features of the
measure as introduced. The statement includes a measure digest written in compliance with applicable readability
standards.
Digest: This Act stops the EQC from adopting, and stops the DEQ from enforcing, California
rules that require some trucks sold in the state to have no emissions. (Flesch Readability Score:
60.3).
Prohibits the Environmental Quality Commission from adopting motor vehicle emission stan-
dards to implement California standards requiring that some or all medium- or heavy-duty vehicles
sold in the state be zero-emission vehicles. Prohibits the Department of Environmental Quality from
enforcing such standards adopted prior to the effective date of the Act.
A BILL FOR AN ACT
Relating to motor vehicle emission standards.
Be It Enacted by the People of the State of Oregon:
SECTION 1.
(1) Notwithstanding ORS 468A.360, the Environmental Quality Commission
may not adopt, pursuant to section 177 of the federal Clean Air Act, 42 U.S.C. 7507, a motor
vehicle emission standard to implement any standard adopted by the State of California re-
quiring that any or all new medium- or heavy-duty vehicles sold in this state be zero-
emission vehicles.
(2) The Department of Environmental Quality may not enforce a motor vehicle emission
standard described in subsection (1) of this section adopted by the commission prior to the
effective date of this 2025 Act.
NOTE: Matter in boldfaced type in an amended section is new; matter [ italic and bracketed] is existing law to be omitted.
New sections are in boldfaced type.
LC 2315