Administrative cabin shall mean any cabin only used by refuge or other authorized personnel for the administration of the refuge.
Cabin shall mean a small, usually single-story, three or more sided structure that is permanently and completely enclosed with a roof and walls. The roof and walls are not fabric, cannot be easily disassembled, and are not removed seasonally.
Commercial cabin shall mean any cabin which is used in association with a commercial operation including but not limited to commercial fishing activities and recreational guiding services.
Existing cabin shall mean any cabin situated on Federal lands before December 2, 1980. A cabin legally situated on lands that subsequently become refuge will also be considered an "existing" cabin providing the applicant meets the appropriate application deadlines.
Family shall include the spouse (including what is known as a common-law relationship), children by birth or adoption, and other blood relatives within the second degree of kindred.
Guest shall mean a person who occasionally visits the permittee in the cabin. This term does not include clients using commercial cabins.
Immediate family shall include the spouse and children, either by birth or adoption, of the claimant residing in the cabin or structure.
New cabin shall mean any permitted cabin constructed on refuge lands after December 2, 1980. This may also include a cabin whose claimant failed to meet the application deadline for existing cabins but is otherwise a permitted cabin.
Other related structures shall mean those structures or devices essential to the activities for which the cabin special use permit is issued. This includes but is not limited to outdoor toilets, food caches, storage sheds, and fish drying racks.
Private recreational use shall mean a use associated with leisure activities, not including bona fide subsistence uses or authorized commercial uses.
Public use cabin shall mean a cabin owned and administered by the Fish and Wildlife Service and available for use by the public.
50 C.F.R. §36.33