Presumption laws — the burden of proof, reversed
In an ordinary claim, you prove work caused the condition. Presumption statutes reverse that: for covered responders with covered conditions, the law presumes work causation and the employer must disprove it. Most states now have firefighter cancer presumptions (specific cancer lists, service-year minimums, sometimes tobacco-use conditions); heart-and-lung acts date back decades (Pennsylvania's Heart and Lung Act is the famous one, with cousins in many states); and a growing wave covers PTSD for first responders without requiring a physical injury (Florida, Texas, Colorado, Minnesota, Washington, and others — one of the fastest-moving areas in comp law). Three cautions: presumptions are rebuttable, not automatic; each has eligibility gates (job class, years of service, medical exams on hire, filing windows); and none of them file the claim for you. Diagnosis in hand, check your state's presumption list before assuming a condition "isn't work-related."
The everyday claims
Beyond the presumption conditions: backs and shoulders from lifting patients and forcing entries, knee injuries from pursuits and uneven fireground footing, hearing loss from sirens and range time, exposure events (needlesticks, bloodborne pathogens, fentanyl contact — report every exposure the day it happens, symptoms or not), and violence against EMS and police that produces both physical and psychological claims. The culture's "walk it off" instinct is the claim's worst enemy here, exactly as it is on construction sites.
Comp, pensions, and the systems that replace comp
Public-safety compensation is a layered machine: some jurisdictions cover police and fire under standard workers' comp; others run separate or supplemental systems (state pension acts, municipal charters, LEOFF-style plans, salary-continuation statutes that pay full wages where comp would pay two-thirds). Disability pensions and comp interact — offsets are common, election choices sometimes irreversible, and the same injury can be worth very different amounts depending on the door you walk through first. Before making any election between comp, disability pension, or salary continuation, get advice from someone who handles public-safety cases in your state; union benefits reps and comp attorneys who know the pension board are the right table.
Volunteers and line-of-duty deaths
Volunteer firefighters and EMS are covered by workers' comp in most states — usually as statutory "employees" of the municipality, sometimes with wage benefits computed from their regular civilian jobs (a detail worth checking, since a volunteer's "wage" at the fire company is zero). For line-of-duty deaths, families have layers beyond state death benefits: the federal Public Safety Officers' Benefits (PSOB) program pays a substantial one-time benefit plus education benefits for children and spouses, and many states add their own line-of-duty death funds. These programs have their own applications and deadlines — survivor families should engage the union, the agency's benefits office, and counsel early, because nobody processes this paperwork well while grieving.