HB2535 • 2026

vehicle emission standards; energy source

HB2535 - vehicle emission standards; energy source

Energy

Passed Legislature

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

Sponsor: Christopher Mathis
Last action: 2026-01-21
Official status: House second read
Effective date: Not listed

Plain English Breakdown

The official source material does not provide information on whether the bill requires the director to notify state leaders about new emission rules.

Vehicle Emission Standards; Energy Source

This bill repeals an existing law about energy sources for vehicles and updates Arizona's vehicle emission standards to match California's stricter rules starting from model year 2028.

What This Bill Does

Repeals the current law about energy sources for vehicles (Section 28-145).
Updates the rules for controlling air pollution from cars and engines to match California’s stricter standards, starting with model year 2028 or newer vehicles.

Who It Names or Affects

People who own or drive cars in Arizona.
Manufacturers of vehicles sold in Arizona.

Terms To Know

Clean Air Act: A federal law that sets standards for air quality and limits the release of pollutants into the atmosphere.
California Air Resources Board (CARB): An agency in California responsible for setting regulations to improve air quality, including vehicle emission standards.

Limits and Unknowns

The bill does not specify when it will take effect.
It only applies to vehicles starting from model year 2028 or newer.

Bill History

2026-01-21 House
House second read
2026-01-20 House
House Rules: None
2026-01-20 House
House Transportation & Infrastructure: None
2026-01-20 House
House first read

Official Summary Text

HB2535 - vehicle emission standards; energy source

Current Bill Text

Read the full stored bill text

HB2535 - 572R - I Ver

REFERENCE TITLE:
vehicle emission standards; energy source

State of Arizona

House of Representatives

Fifty-seventh Legislature

Second Regular Session

2026

HB 2535

Introduced by

Representative
Mathis

AN
ACT

repealing section 28-145, Arizona Revised
Statutes; amending section 49-447, Arizona Revised Statutes; relating to
vehicles.

(TEXT OF BILL BEGINS ON NEXT PAGE)

Be it enacted by the Legislature of the State of Arizona:

Section 1.
Repeal

Section 28-145, Arizona Revised
Statutes, is repealed.

Sec. 2. Section 49-447, Arizona Revised
Statutes, is amended to read:

START_STATUTE
49-447.

Motor vehicle and combustion engine emission; standards; notice

a.
The director shall adopt
rules setting forth standards controlling the release into the atmosphere of
air contaminants from motor vehicles and combustion engines.
Any rules adopted pursuant to this section shall be consistent with
provisions of federal law, if any, relating to control of emissions from motor
vehicles or combustion engines.
This authority shall apply to
implement
the provisions of
sections 28-955 and 49-542.

B. Notwithstanding any other law and
as provided by section 177 of the clean air act, the director shall adopt rules
to implement vehicle emissions standards for vehicles model year 2028 or newer
that are identical to the standards adopted by the California air resources
board.� the director shall adopt rules to implement only the standards for
which the United States environmental protection agency has granted a waiver to
the California air resources board.

C. On the director's receipt of a
notice of final rulemaking for rules or any amendments to rules adopted
pursuant to this section, the director shall notify in writing the governor,
speaker of the house of representatives, president of the senate, director of
the legislative council and secretary of state of both of the following:

1. The rules adopted or amended.

2. The California air resources board
standards the adopted rule or amendment to the adopted rule implements.
END_STATUTE