California AB 2013 and SB 53 Reach January 1, 2026 Compliance Date

On January 1, 2026, California AB 2013's first training-data documentation deadline and SB 53's frontier-AI transparency provisions became current compliance items. The California AI Transparency Act created by SB 942 did not become operative on January 1, 2026; AB 853 amended Business and Professions Code § 22757.6 so Chapter 25 becomes operative August 2, 2026, with large-online-platform and GenAI-hosting-platform duties beginning January 1, 2027 and capture-device-manufacturer duties beginning January 1, 2028.

Source: leginfo.legislature.ca.gov