Revises workers' compensation coverage for certain injuries to volunteer and professional public safety and law enforcement personnel.

This bill expands workers' compensation coverage for cardiovascular or cerebrovascular injuries or deaths occurring during emergency work for public safety personnel. It applies to volunteer and professional firefighters, police, emergency medical technicians (including those employed by private entities), 911 dispatchers, and volunteer emergency management staff. The law creates a rebuttable presumption that such injuries are work-related if they occur during emergency response or within 24 hours of "remediating" (post-emergency protocols). Rebuttal requires clear medical evidence showing work wasn't a substantial cause, or proof of factors like intoxication or self-infliction.