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Archive articleThis article covers a real industry development from the indicated week. It was independently written and first published by Auto Glass Shop News on August 21, 2026.
Business & PolicyArchive week: May 29, 2026 4 min read

California Senate Passes Glass Reform Bill SB 988, Assembly Review Begins

California's Motor Vehicle Glass Act cleared the full Senate at the end of May 2026 and moved to Assembly review, where its definition of covered businesses and its claim-number requirement both faced potential amendment.

Illustrated portrait for Elena
By
Elena
Business & Policy Editor

The most-watched legislative development in the auto-glass industry during the last week of May 2026 was the California Senate's passage of SB 988 — the California Motor Vehicle Glass Act — which then moved to Assembly review. The full Senate voted in favor of the bill on May 27, setting up an Assembly process that would involve a new round of hearings and potential amendments.

The bill, sponsored by Senator Tim Grayson (D), was modeled on the NCOIL framework. Its core provisions as it arrived in the Assembly required glass shops to obtain a claim number before beginning authorized repair or replacement work, mandated written ADAS recalibration disclosures to vehicle owners and prohibited the assignment of insurance policy rights to repair shops.

As the bill entered Assembly review, it carried a narrowed definition of "motor vehicle glass repair shop" compared to its original draft — a change made during Senate committee review. The Assembly process would test whether further scope restrictions were possible and whether the controversial claim-number provision would survive the next round of industry testimony.

California's regulatory environment was watched closely by the entire national industry because of the state's size and legislative influence. A California law that broadly followed the NCOIL template would represent the largest single expansion of that framework's reach by population, covering a market estimated at roughly 12–15% of all U.S. auto-glass transactions annually.

For California shop owners, the Senate passage meant the clock was running. If the Assembly passed the bill without significant changes, the governor's desk would be the final opportunity for modification or veto. Shops that had not already begun preparing their operational changes — particularly around claim-number tracking workflows and ADAS disclosure documentation — were advised to start regardless of the bill's final fate, since some form of increased regulatory oversight seemed highly probable.

Key Takeaways

  • •California SB 988 passed the full Senate in May 2026 with NCOIL-aligned claim-number, ADAS disclosure and AOB-ban provisions intact; Assembly review was the next critical phase.
  • •California accounts for an estimated 12–15% of U.S. auto-glass transactions; this bill's final form will have broader market impact than any prior state-level regulation.
  • •California shops should begin preparing ADAS disclosure documentation and claim-number tracking workflows regardless of the bill's final form — enhanced regulatory oversight was coming in some form.