First Regular Session
Seventy-fifth General Assembly
STATE OF COLORADO
INTRODUCED
LLS NO. 25-0600.01 Richard Sweetman x4333
HOUSE BILL 25-1118
House Committees Senate Committees
Energy & Environment
A BILL FOR AN ACT
C
ONCERNING THE REPLACEMENT OF CERTAIN CATALYTIC101
CONVERTERS.102
Bill Summary
(Note: This summary applies to this bill as introduced and does
not reflect any amendments that may be subsequently adopted. If this bill
passes third reading in the house of introduction, a bill summary that
applies to the reengrossed version of this bill will be available at
http://leg.colorado.gov
.)
When a catalytic converter mechanically fails or is stolen from a
motor vehicle, current rules of the air quality control commission require
the replacement to comply with the rules of the California air resources
board. The bill creates a temporary exception that allows a person to use
a replacement catalytic converter that complies with the standards
established by rules of the federal environmental protection agency if:
HOUSE SPONSORSHIP
Mauro and Mabrey,
SENATE SPONSORSHIP
(None),
Shading denotes HOUSE amendment. Double underlining denotes SENATE amendment.
Capital letters or bold & italic numbers indicate new material to be added to existing law.
Dashes through the words or numbers indicate deletions from existing law. ! In the case of the theft of a catalytic converter, the theft has
been reported to a law enforcement agency; and
! The owner or operator of the motor vehicle has made a
reasonable effort to obtain the required replacement
catalytic converter and has been unable to obtain the
replacement catalytic converter.
The exception is repealed, effective July 1, 2027.
Be it enacted by the General Assembly of the State of Colorado:1
SECTION 1. In Colorado Revised Statutes, add 42-4-318 as2
follows:3
42-4-318. Exception to enforcement in cases of theft or4
mechanical failure of a catalytic converter - unavailability of5
replacement catalytic converter - rules - repeal.6
(1) N
OTWITHSTANDING THIS PART 3, ARTICLE 7 OF TITLE 25, OR ANY RULE7
ADOPTED IN ACCORDANCE WITH ARTICLE 7 OF TITLE 25, AN INDIVIDUAL8
MAY OPERATE A MOTOR VEHICLE WITH A CATALYTIC CONVERTER THAT9
COMPLIES WITH THE STANDARDS ESTABLISHED BY RULES OF THE FEDERAL10
ENVIRONMENTAL PROTECTION AGENCY FOR CATALYTIC CONVERTERS IF :11
(a) A
CATALYTIC CONVERTER HAS BEEN STOLEN FROM , OR12
MECHANICALLY FAILS IN, THE MOTOR VEHICLE;13
(b) I
N THE CASE OF A STOLEN CATALYTIC CONVERTER , THE OWNER14
OR OPERATOR OF THE MOTOR VEHICLE HAS REPORTED THE THEFT TO A15
LAW ENFORCEMENT AGENCY ; AND16
(c) T
HE OWNER OR OPERATOR OF THE MOTOR VEHICLE HAS MADE17
A REASONABLE EFFORT TO OBTAIN A REPLACEMENT CATALYTIC18
CONVERTER THAT COMPLIES WITH THIS PART 3, ARTICLE 7 OF TITLE 25,19
AND ANY RULES ADOPTED IN ACCORDANCE WITH ARTICLE 7 OF TITLE 25,20
AND THE OWNER OR OPERATOR HAS BEEN UNABLE TO OBTAIN THE21
CATALYTIC CONVERTER.22
HB25-1118-2- (2) ON OR BEFORE OCTOBER 1, 2025, THE AIR QUALITY CONTROL1
COMMISSION SHALL ADOPT RULES TO IMPLEMENT THIS SECTION .2
(3) T
HIS SECTION IS REPEALED, EFFECTIVE JULY 1, 2027.3
SECTION 2. Act subject to petition - effective date. This act4
takes effect at 12:01 a.m. on the day following the expiration of the5
ninety-day period after final adjournment of the general assembly; except6
that, if a referendum petition is filed pursuant to section 1 (3) of article V7
of the state constitution against this act or an item, section, or part of this8
act within such period, then the act, item, section, or part will not take9
effect unless approved by the people at the general election to be held in10
November 2026 and, in such case, will take effect on the date of the11
official declaration of the vote thereon by the governor.12
HB25-1118
-3-