California Car Modification Laws 2025 Modifications

California Car Modification Laws 2025 Modifications. California’s vehicle modification laws in this section, we’ll detail the distinction between approved and prohibited vehicle modifications under california law, as well as the rigorous smog check and emissions standards. Car modification laws in california are designed to ensure drivers stay safe and that modified vehicles meet certain standards.

When congress enacted federal air quality laws in the 1960s, it gave california the authority to go above and beyond national standards because it was the only state to already. In california, it’s crucial to understand which car modifications are within legal limits.