Who can receive a post differential?
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
An employee must meet all of the following conditions to be eligible to receive a post differential:
(a) The employee must be a citizen or national of the United States,
(b) The employee's official worksite or detail to temporary duty must be in the post differential area, and
(c) Immediately prior to being assigned to duty in the post differential area, the employee must have maintained his or her actual place(s) of residence outside the post differential area for an appropriate period of time (generally at least 1 year or more), except as provided in § 591.234.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.