I found RI:

https://www.iaff.org/presumptive-health/ri/

Sec. 45-19.1-3
Occupational cancer disability for fire fighters.

1... "and any retired member of the fire department of any city or town who develops occupational cancer, is entitled to receive an occupational cancer disability, and he or she is entitled to all of the benefits provided for in chapters 19, 21 and 21.2 of this title and chapter 10 of title 36 if the fire fighter is employed by the state.

2. The provisions of this section apply retroactively in the case of any retired member of the fire department of any city or town."

That should be a start. I would expect RI to know how to issue the informational reporting (or not issue any at all) for nontaxable payments for Fed purposes. They had from Feb 2022 to make that separation.