42 U.S. Code § 1654 - Persons excluded from benefits
This chapter shall not apply in respect to the injury or death of (1) an employee subject to the provisions of subchapter I of chapter 81 of title 5; (2) an employee engaged in agriculture, domestic service, or any employment that is casual and not in the usual course of the trade, business, or profession of the employer; and (3) a master or member of a crew of any vessel.
“Subchapter I of Sept. 7, 1916 (39 Stat. 742), known as the Federal Employees’ Compensation Act, on authority of Pub. L. 89–554, § 7(b), Sept. 6, 1966, 80 Stat. 631, the first section of which enacted Title 5, Government Organization and Employees.chapter 81 of title 5” substituted for reference to act