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Jay Leno's new bill could rewrite California's classic car emissions rules

A legendary comedian's passion for vintage rides could spark a policy shift. Why this law might save classic cars from costly smog tests.

The image shows an old advertisement for a car with a picture of the vehicle on it. The car is a...
The image shows an old advertisement for a car with a picture of the vehicle on it. The car is a vintage model, with a black and white color scheme and a classic design. The text on the paper reads "Vehicle".

Jay Leno's new bill could rewrite California's classic car emissions rules

It's the latest chapter in a fight that's been dragging on for years between car enthusiasts and emissions rules.

Because while modern cars are getting cleaner, older ones are getting harder and more expensive to keep road legal.

And that's exactly where Leno stepped in.

The classic car emissions rule California changed

This all traces back to a rule California used to have.

For years, the state ran a rolling exemption, so once a car hit 30 years old, it no longer needed regular smog checks.

Then in 2004, that changed.

California scrapped the rolling system and replaced it with a fixed cutoff - only cars from 1975 or earlier were exempt.

Everything newer got pulled into modern testing, even if it was rarely driven.

Over time, that created a strange situation where cars from the late '70s and '80s were treated like daily drivers.

Owners ended up facing rising costs, long wait times, and fewer places that could even test older engines.

Jay Leno has been a steady hand behind the push

That's where Jay Leno comes in.

He's not just backing a bill - he owns one of the biggest classic car collections in the US and deals with these rules himself.

The bill itself is called Senate Bill 1392, also known as 'Leno's Law'.

He's been publicly backing versions of this legislation for at least the past couple of years, including a 2025 attempt that ultimately stalled.

That earlier version made it further than any attempt in over 20 years, before getting held up over costs.

So this 2026 version is a tighter rewrite of that same push.

It keeps the idea - exemptions for older cars - but limits it to a clearly defined group.

The car has to be registered as a collector vehicle, not used daily, and mainly driven for shows or events.

This California classic car emissions law could spread beyond the state

Because of that rewrite, the bill is in a much stronger position than last year.

And if it passes, the impact likely won't stop at California.

The state sets the tone for emissions rules, and others often follow.

So if California lands on a version that works, it becomes an easy template for other states.

It's not guaranteed, but that's how a lot of US car policy spreads.

And why this one change could reach far beyond California.

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