[Code of Federal Regulations] [Title 5, Volume 1] [Revised as of January 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 5CFR591.208] [Page 674] TITLE 5--ADMINISTRATIVE PERSONNEL CHAPTER I--OFFICE OF PERSONNEL MANAGEMENT PART 591--ALLOWANCES AND DIFFERENTIALS--Table of Contents Subpart B--Cost-of-Living Allowance and Post Differential--Nonforeign Areas Sec. 591.208 Post differential. (a) The post differential is based on: (1) Extraordinarily difficult living conditions; (2) Excessive physical hardship; or (3) Notably unhealthful conditions. (b) The places at which differentials are paid are-- (1) American Samoa (including the island of Tutuila, the Manua Islands, and all other islands of the Samoa group east of longitude 171 degrees west of Greenwich, together with Swains Island); (2) Guam; (3) The Commonwealth of the Northern Mariana Islands; (4) Johnston Island and Sand Island; and (5) Midway Islands and Wake Island. (c) New or revised post differential rates are published as notices in the Federal Register. [55 FR 1373, Jan. 16, 1990, as amended at 59 FR 53725, Oct. 26, 1994]