California SB 988 Advances Through Assembly With Narrowed Scope for Glass Shops
The California Motor Vehicle Glass Act has cleared the Assembly with a tighter definition of which businesses qualify as "motor vehicle glass repair shops," drawing continued debate over ADAS disclosure requirements.

California Senate Bill 988, the California Motor Vehicle Glass Act, continued its path through the state legislature in late July 2026, advancing in the Assembly with amendments that narrowed its key definitions. The amended bill now applies a tighter definition of "motor vehicle glass repair shop," limiting which businesses fall within the statute's regulatory reach compared with the broader scope of earlier versions.
The bill would require shops primarily engaged in glass replacement to disclose ADAS calibration needs to vehicle owners and to confirm that calibration was completed before returning the vehicle. It also addresses other business practices including pricing transparency and consumer disclosure. The narrowed definition of "motor vehicle glass repair shop" was among the amendments adopted as the bill moved through Assembly committee review.
The bill has drawn testimony from industry stakeholders on multiple sides. Supporters argue that consumer protection requirements—particularly around ADAS calibration disclosure—are necessary as more vehicles on the road carry camera and radar systems that depend on accurate windshield positioning. Critics raised concerns during earlier hearings about the regulatory burden on small shop operators and ambiguity in the bill's enforcement framework.
California's SB 988 is being watched closely by glass industry observers in other states, given California's history as a legislative trendsetter in automotive policy. A version of the Motor Vehicle Glass Act that clears the full California legislature and is signed by the governor could serve as a template for similar bills in other large states. The bill's final status will depend on votes in remaining Assembly committees and on the floor before the legislative session closes.
For shops doing business in California, the bill's progress warrants attention. If enacted, it would create statutory obligations around calibration disclosure, documentation, and customer communication that go beyond what many shops currently practice informally. Trade associations including the Auto Glass Safety Council have been active in the legislative process and are a resource for members seeking to understand the bill's current text.
Key Takeaways
- •California SB 988, the Motor Vehicle Glass Act, advanced in the Assembly in July 2026 with amendments narrowing the definition of "motor vehicle glass repair shop."
- •The bill would require shops primarily engaged in glass replacement to disclose ADAS calibration needs and confirm completion before vehicle return.
- •California shops and national trade observers are watching the bill as a potential legislative model for other states.