Bill > HR2218

This bill, titled the "Stop CARB Act of 2025", aims to eliminate California's ability to set its own motor vehicle emissions standards and restrict state-level emissions regulations. Specifically, the bill repeals provisions in the Clean Air Act that previously allowed California (through the California Air Resources Board or CARB) to establish unique vehicle emissions standards and obtain federal waivers to implement those standards. The bill removes the legal framework that permitted California to create stricter emissions regulations that other states could then choose to adopt. It prohibits states from adopting or enforcing emissions standards for various types of vehicles and engines, including construction equipment, farm vehicles, and locomotives. Additionally, the bill invalidates any existing waivers issued to California and terminates any pending waiver applications. The legislation effectively standardizes vehicle emissions regulations at the federal level, removing California's longstanding special authority to create more stringent environmental regulations for motor vehicles. This change could potentially reduce the pace of emissions reductions in the transportation sector and limit state-level efforts to address air quality and climate change.

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https://www.congress.gov/bill/119th-congress/house-bill/2218/all-info