California's SB 826 Board Gender Quota — Rapid Gains, Then Struck Down as Unconstitutional

California's SB 826, signed on 30 September 2018, required every publicly held company headquartered in the state to seat at least one woman director by the end of 2019, rising to two or three depending on board size by the end of 2021 — the first mandatory corporate board gender quota in the United States.

While in effect, the law drove rapid change: industry trackers (Equilar's Gender Diversity Index, the California Partners Project) recorded more than 2,000 new board seats held by women in California and a board-seat share of 32.5%, the highest of any US state at the time.

On 13 May 2022, the Los Angeles County Superior Court ruled in Crest v. Padilla that SB 826 violated the Equal Protection Clause of the California Constitution, finding the state had not shown a compelling interest or that the quota was necessary and narrowly tailored; the ruling ended enforcement after roughly three years and 27 days of trial.

Subsequent reporting (Forbes, December 2023) found women's representation on California corporate boards had since declined, indicating that gains achieved under the mandate were not fully self-sustaining once the legal requirement was removed. The case is a direct cautionary counterpoint to statutory quotas elsewhere: it shows a hard quota can move numbers quickly, but one built on an explicit sex-based classification is vulnerable to constitutional challenge, and its gains may erode without the mandate in place.