{"data":{"id":"us/5-cfr-591.231","jurisdiction":"us","citation":"5 CFR 591.231","heading":"Which areas are post differential areas?","body":"OPM has established the following post differential areas:\n(a) American Samoa as defined in § 591.205,\n(b) Territory of Guam,\n(c) Commonwealth of the Northern Mariana Islands,\n(d) Johnston Atoll (including Sand Island),\n(e) Midway Atoll, and\n(f) Wake Atoll.","path":["Title 5—Administrative Personnel","CHAPTER I—OFFICE OF PERSONNEL MANAGEMENT","SUBCHAPTER B—CIVIL SERVICE REGULATIONS","PART 591—ALLOWANCES AND DIFFERENTIALS","Subpart B—Cost-of-Living Allowance and Post Differential—Nonforeign Areas"],"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":"1bdb7067cd1028c111786aae9725430efc77cc716a385952510b4e4ed9692654","source_id":"us-cfr","stale":true,"prev":"us/5-cfr-591.230","next":"us/5-cfr-591.232"},"notice":"GroundRules: Original legal text. Not legal advice."}