When Governor Gavin Newsom signed Senate Bill 1392 at Jay Leno’s Burbank garage in mid-September 2026, the spotlight landed on a narrow slice of the fleet: late-1970s and early-1980s cars that enthusiasts restore for shows, cruises, and club events—not for Monday-morning commutes. Nicknamed Jay Leno’s Law, the measure phases in a biennial smog-check exemption for qualifying collector vehicles built in model years that have long been stuck between California’s pre-1976 blanket waiver and modern emissions hardware that is expensive to replace.
What SB 1392 actually changes
California already exempts most vehicles manufactured before the 1976 model year from the smog inspection program administered by the Bureau of Automotive Repair (BAR). Cars from 1976 onward normally need a certificate of compliance or noncompliance when you register, renew every two years, or transfer ownership. SB 1392 expands who can skip that full test for certain collector cars, but only if the owner meets strict use and insurance rules spelled out in the official bill text and summarized by the Governor’s signing announcement.
The law does not repeal smog rules for daily drivers, work trucks, or project cars you rely on for regular transportation. It targets vehicles preserved for display and occasional use, a distinction California regulators have tried to codify for years because mobile-source exhaust remains the state’s largest single contributor to unhealthy air, as tracked in federal mobile source pollution data.
Who counts as a qualifying collector vehicle
Under the updated definition, a collector motor vehicle must generally be at least 35 model years old, used mainly for shows, parades, charitable events, or historical exhibitions, and not treated as the owner’s primary way to get around. You also need one of two proofs of limited use:
- Insurance classified as collector or classic vehicle coverage, or
- Documentation showing the car was driven fewer than 1,000 miles in the prior calendar year.
That mileage cap matters for budgeting: even at $4.15 per gallon of regular gasoline—a figure close to the national average cited in AAA’s 2026 ownership study—a 12-mpg muscle car burning 85 gallons across 1,000 show miles still costs about $353 in fuel alone, before trailer fees, club dues, or overnight parking at events. Owners who underestimate those occasional-use costs often discover that registration and insurance still dominate the annual bill.
Phase-in calendar from 2028 through 2033
Exemptions do not start immediately. According to the legislative language and reporting from the Los Angeles Times, the schedule works like this:
- January 1, 2028: Qualifying collector vehicles built before the 1981 model year.
- Each following January 1: Eligibility widens by one model year.
- January 1, 2033: Coverage reaches vehicles manufactured through the 1985 model year.
If you own a 1979 Pontiac Trans Am or a 1984 Monte Carlo lowrider, mark those dates now. A car that fails smog in 2027 still needs a certificate until its model year enters the phased window and the collector criteria are met.
What still costs money—and still requires DMV paperwork
Skipping biennial smog testing is not the same as skipping registration. The California DMV continues to collect registration fees, weight fees where applicable, and any unpaid parking or toll violations before issuing renewal stickers. Transfer taxes, title fees, and proof of insurance remain unchanged.
Until your model year qualifies, budget for a smog test at a licensed station. Consumer groups commonly cite a range of roughly $30 to $80 for the inspection in metro areas, plus repair bills if aged catalytic converters, carburetors, or vacuum lines fail. Those repair spikes are why many owners mothball otherwise roadworthy cars; Jay Leno’s Law is designed to let legally limited-use classics return to sanctioned events without forcing owners to hunt rare emissions parts.
Collector insurance premiums vary widely by garage address, driver age, and agreed value, but $400 to $1,500 per year is a typical bracket for liability-focused policies on 1980s coupes stored off-street. Add $150 to $300 for annual registration on many passenger classics, and total fixed costs can exceed $1,000 before you turn the key.
Lowrider culture and the companion license plate bill
At the same signing event, Newsom enacted Assembly Bill 2541, creating a specialty license plate honoring California lowrider heritage. Lowriders—often 1960s through 1980s sedans with custom paint and hydraulic or air suspension—were a major force behind grassroots support for SB 1392. The plate program is cultural recognition, not a smog waiver by itself; your vehicle still has to meet whichever inspection rules apply to its model year and use case.
Practical steps owners should take now
Photograph odometer readings at the start of each calendar year if you plan to rely on the under-1,000-miles pathway. Keep show programs, club rally receipts, and insurance declarations in one folder; BAR or DMV auditors may ask for a paper trail.
If you garage a classic in California but register a commuter in another state, remember that exemption logic follows where the vehicle is registered and tested, not where it sits under a cover. Out-of-state readers eyeing a SoCal purchase should run a history report and confirm smog status before handing over a cashier’s check.
Drivers juggling a modern daily SUV with a weekend collector coupe can log each vehicle’s registration and smog due dates in CarDiary so renewal paperwork for one car does not get lost behind oil changes on the other.
For a quick sense of how rising pump prices affect the car you actually drive every day, pair this collector-car planning with the CarDiary MPG and fuel cost calculator, which uses US gallons and miles per gallon. Registration timing tools such as the CarDiary registration renewal guide and inspection due date tracker help you see how California’s calendar differs from states that tie safety inspection to birth month rather than smog cycle.
Why the debate will continue
Public health groups opposed earlier waiver bills, arguing that any additional tailpipe emissions work against California’s climate targets. Supporters counter that exempted cars represent well under 1% of registrations and rarely accumulate commuter miles. Whether you agree or not, the compromise is tightly worded: primary transportation, rideshare duty, or a high-mileage summer road trip could disqualify you if documentation shows everyday use.
Jay Leno’s Law therefore rewards disciplined ownership—maintained engines, limited miles, and transparent records—more than it rewards simply owning a cool hood ornament. For the Trans Ams, Malibus, and customized Impalas that define West Coast car culture, that may be the difference between staying street-legal for the next cruise night and watching from the sidewalk.
