HB1118 creates a temporary exception to Colorado’s current catalytic converter replacement requirements. Under existing air quality rules, replacement catalytic converters generally must comply with California Air Resources Board standards. This bill would allow a motor vehicle owner or operator to use a replacement catalytic converter that meets federal Environmental Protection Agency standards instead, but only in limited circumstances: the original converter must have been stolen or mechanically failed, the theft must have been reported to law enforcement if applicable, and the owner or operator must have made a reasonable effort to obtain a compliant replacement and been unable to do so.
The bill also directs the Air Quality Control Commission to adopt rules by October 1, 2025, to implement the new exception. The exception is temporary and is repealed on July 1, 2027. In practical terms, the bill would modify how Colorado enforces catalytic converter replacement standards for a short period, easing compliance when California-standard parts are unavailable after theft or failure.
Impact
HB1118 would create a narrow statutory exception to Colorado’s air quality and vehicle equipment rules by allowing EPA-compliant catalytic converters in certain theft or mechanical-failure cases, notwithstanding existing state rules tied to California standards. It would affect vehicle owners, repair shops, insurers, and law enforcement reporting practices, while also requiring the Air Quality Control Commission to promulgate implementing rules. The bill would temporarily alter enforcement of replacement-part requirements but would not permanently change the underlying regulatory framework because the exception sunsets in 2027.
Sentiment
The available voting history suggests broad support in the House Energy & Environment Committee. The committee adopted two amendments unanimously and advanced the bill 12-1 to Appropriations, indicating that most members viewed the measure favorably. No committee transcript was provided, so there is no recorded floor or committee debate to show broader public sentiment, but the vote pattern points to general agreement that the bill addresses a practical supply problem.
Contention
The main policy tension appears to be between maintaining Colorado’s stricter emissions-related replacement standards and creating flexibility when compliant catalytic converters are unavailable. Supporters likely view the bill as a pragmatic response to theft and supply shortages, while the lone dissenting vote suggests at least some concern about weakening emissions enforcement or creating an exception to the state’s California-based standard. The bill tries to limit that concern by requiring a theft report, a reasonable-effort showing, and a sunset date.