Worker's compensation: disabilities; presumption of causation of heart and respiratory diseases; extend to certain members of police, fire, and public safety departments. Amends sec. 405 of 1969 PA 317 (MCL 418.405).

SB 161 expands Michigan's worker's compensation law to presume that heart and respiratory diseases are work-related for public safety workers. It applies to firefighters, police officers, sheriff's deputies, conservation officers, and other first responders who develop these conditions during active service. The bill creates a new "Christopher R. Slezak first responder presumed coverage fund" to handle claims, shifting responsibility from employers to the fund. Workers must still meet service requirements (60+ months) and demonstrate work-related exposure, but the presumption simplifies proving workplace connection for these specific conditions.