Stricter OBD rules: In 2026, all applicable OBD-II readiness monitors must be set for a vehicle to pass, ending long-standing exemptions. Impact on drivers: More vehicles may initially fail smog ...

The U.S. Environmental Protection Agency is proposing to partially halt California’s State Implementation Plan (SIP) relating to emissions controls for non-gasoline-combustion vehicles over 14,000 ...

California lawmakers are advancing Senate Bill 1392, or “Leno’s Law,” which would phase in smog check exemptions for certain collector cars while keeping strict limits on their use. The proposal comes ...

Should old cars get a break from California’s smog check laws? Former Tonight Show host and avid car collector Jay Leno thinks so. He’s thrown his support behind a bill in the state legislature that ...

Jay Leno’s star power wasn’t enough to persuade a California legislative committee to pass a measure to allow owners of classic cars like him to be exempted from the state’s rigorous smog-check ...