Bill > S1072

This bill, known as the Stop CARB Act of 2025, proposes significant changes to the Clean Air Act that would fundamentally alter California's ability to set its own vehicle emissions standards. Specifically, the bill would eliminate the longstanding waiver that has allowed California to establish stricter emissions regulations for motor vehicles and nonroad engines, a unique authority the state has held since the 1970s. The legislation would repeal Section 209(b) of the Clean Air Act, which previously permitted California to obtain EPA waivers for more stringent emissions standards, and would also eliminate Section 177, which allowed other states to adopt California's standards. The bill would prohibit states from adopting or enforcing any emissions standards for nonroad engines and vehicles, including construction equipment, farm vehicles, locomotives, and their engines. Additionally, the bill would invalidate all existing waivers and pending waiver applications, effectively preventing California and other states from implementing their own more aggressive emissions control policies. These changes would standardize vehicle emissions regulations at the federal level, removing the state-level flexibility that has historically driven innovation in emissions reduction technologies.

Agriculture and Natural Resources

https://www.congress.gov/bill/119th-congress/senate-bill/1072/all-info