To amend title 5, United States Code, to include Parkinson's disease in the list of illnesses and diseases deemed to be proximately caused by employment in fire protection activities, and for other purposes.

HR 4453 would amend federal law to add Parkinson's disease to the list of illnesses automatically considered work-related for firefighters. Specifically, it inserts "Parkinson's disease" into Section 8143b(b) of Title 5, U.S. Code, which determines which conditions qualify for disability benefits under the Federal Employees' Compensation Act. This change directly affects firefighters who develop Parkinson's disease during their fire protection duties, making it easier for them to qualify for federal disability compensation without needing to prove direct causation. The bill modifies existing code language to include this condition among other work-related illnesses already covered for firefighter benefits.