Code of Federal Regulations Title 50. Wildlife and Fisheries § 50.25.31 General provisions

(a) Official signs posted conspicuously at appropriate intervals and locations;

(b) Special regulations issued under the provisions of § 26.33 of this subchapter C.

(c) Maps available in the office of the refuge manager, regional director, or area director, or

(d) Other appropriate methods which will give the public actual or constructive notice of the permitted or curtailed public access, use, or recreational activity.