Places and Rates At Which Differentials Are Paid

This appendix lists the places where a post differential has been approved and shows the differential rate to be paid to eligible employees. The differential percentage rate shown is paid as a percentage of an employee's rate of basic pay. Geographic coverage Percentage differential rate American Samoa (including the island of Tutuila, the Manua Islands, and all other islands of the Samoa group east of longitude 171° west of Greenwich, together with Swains Island) 25.0 Johnston Atoll 25.0 Midway Atoll 25.0 Territory of Guam and Commonwealth of the Northern Mariana Islands 20.0 Wake Atoll 25.0