5 U.S. Code § 6132 - Prohibition of coercion
Prohibition of coercion
(a) An employee may not directly or indirectly intimidate, threaten, or coerce, or attempt to intimidate, threaten, or coerce, any other employee for the purpose of interfering with—
such employee’s rights under sections 6122 through 6126 of this title to elect a time of arrival or departure, to work or not to work credit hours, or to request or not to request compensatory time off in lieu of payment for overtime hours; or
For the purpose of subsection (a), the term “intimidate, threaten, or coerce” includes, but is not limited to, promising to confer or conferring any benefit (such as appointment, promotion, or compensation), or effecting or threatening to effect any reprisal (such as deprivation of appointment, promotion, or compensation).