CA AB1329

Clarifies how permanent disability is measured for workers' compensation subsequent injury claims: for injuries from 2005-2012, uses the AMA Guides impairment rating adjusted for diminished earning capacity; for injuries from 2013 onward, applies a 1.4 adjustment factor instead

Establishes new eligibility requirements for subsequent injury compensation claims occurring on or after January 1, 2026, requiring substantial evidence that prior disabilities predated the subsequent injury and impacted work ability or daily living

Excludes acid reflux/GERD, diabetes, sleep apnea, and sexual dysfunction from qualifying as preexisting labor-disabling disabilities for subsequent injury benefits

Sets a statute of limitations for subsequent injury claims (after January 1, 2026) at 5 years from the injury date or 1 year from when permanent disability level is determined by the Workers' Compensation Appeals Board, whichever is later

Transfers payment administration from the State Compensation Insurance Fund to the Director of Industrial Relations as trustee of the Subsequent Injuries Benefits Trust Fund, and requires creation of a database of qualified medical evaluators for these claims