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May 18, 2026

California's SB 235: Key provisions, strategic impact and what to know before 2027 sunset

With less than a year before its Jan. 1, 2027, sunset, California's mandatory disclosure law under SB 235 has reshaped state court discovery--and whether the Legislature extends, modifies or lets it expire, this is a critical time for litigators to take stock of the law's key provisions.

Brent Owen

Partner
Haynes and Boone, LLP

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Annie Nicholson

Associate
Haynes and Boone, LLP

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Kayla Shojai

Associate
Haynes and Boone, LLP

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California's SB 235: Key provisions, strategic impact and what to know before 2027 sunset
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With less than a year remaining before its Jan. 1, 2027 sunset, California's initial disclosure experiment under Senate Bill No. 235 (SB 235), codified at Code of Civil Procedure Sections 2016.090 and 2023.050, has reshaped how litigators approach the earliest stages of state court discovery. Since taking effect for civil actions filed on or after Jan. 1, 2024, the law has required mandatory disclosures upon demand, imposed heightened discovery sanctions, and aligned--and in ...

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