As presumptions continue to see proposed expansions in workers’ comp, two states are seeking to address hypertension presumptions for first responders.

Maryland House Bill 347 would establishes a hypertension presumption for eligible fire‑service personnel, including firefighters, firefighting instructors, rescue squad members, ALS unit members, and members of the State Fire Marshal’s Office.

This would create make hypertension a compensable occupational disease and worker would be presumed disabled unless rebutted by the employer.

If enacted, this bill would go into effect October 1, 2026.

Meanwhile, Arizona House Bill 2679 would strengthen the state’s existing presumption for heart‑related, perivascular, and pulmonary conditions occurring within 24 hours of a known exposure event by raising employers’ rebuttal requirements.

Employers would bear the burden to present clear and convincing evidence that such conditions were not work-related, and employers would be prohibited from citing factors like age, family history, or lifestyle to rebut claims.