50 C.F.R. § 27.85 Gambling.
Title 50 - Wildlife and Fisheries
Gambling in any form, or the operation of gambling devices, for money or otherwise, on any national wildlife refuge is prohibited.
Title 50: Wildlife and Fisheries
PART 27—PROHIBITED ACTS
Subpart H—Disturbing Violations: Personal Conduct
§ 27.85 Gambling.