28 C.F.R. § 551.2 Mustaches and beards.
Title 28 - Judicial Administration
An inmate may wear a mustache or beard or both. The Warden shall require an inmate with a beard to wear a beard covering when working in food service or where a beard could result in increased likelihood of work injury. [46 FR 59509, Dec. 4, 1981]
Title 28: Judicial Administration
PART 551—MISCELLANEOUS
Subpart A—Grooming
§ 551.2 Mustaches and beards.