This subpart prescribes the regulations required by sections 5545(d) and 5548(b) of title 5, United States Code, for the payment of differentials for duty involving unusual physical hardship or hazard to employees.
[56 FR 20344, May 3, 1991]
source: 33 FR 12458, Sept. 4, 1968, unless otherwise noted.
cite as: 5 CFR 550.901