Relating to certain presumptions applicable to claims for benefits or compensation for certain medical conditions brought by certain first responders.

HB 331 creates a legal presumption that certain heart attacks or strokes suffered by firefighters, peace officers, and emergency medical technicians (EMTs) are work-related if they occur within eight hours after a shift involving strenuous physical activity like firefighting, rescue, or training. This means these first responders no longer need to prove their medical condition was caused by their job - instead, the law assumes it was work-related under specific conditions. The bill applies only to claims filed after its effective date (May 24, 2025), not to past claims. It excludes clerical or administrative work from the presumption, focusing solely on active emergency response duties.