{"data":{"id":"us/5-cfr-550.901","jurisdiction":"us","citation":"5 CFR 550.901","heading":"Purpose.","body":"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.","path":["Title 5—Administrative Personnel","CHAPTER I—OFFICE OF PERSONNEL MANAGEMENT","SUBCHAPTER B—CIVIL SERVICE REGULATIONS","PART 550—PAY ADMINISTRATION (GENERAL)","Subpart I—Pay for Duty Involving Physical Hardship or Hazard"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-5.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:23:53Z","sha256":"2b0a5e3e8a5421c0a79b85b733ba7fb2a239c5794bd3a3b49beb4a40a26954c9","source_id":"us-cfr","stale":true,"prev":"us/5-cfr-appendix-a-to-subpart-h-of-part-550","next":"us/5-cfr-550.902"},"notice":"GroundRules: Original legal text. Not legal advice."}