[Code of Federal Regulations]
[Title 43, Volume 1]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 43CFR21.3]

[Page 431-432]
 
                    TITLE 43--PUBLIC LANDS: INTERIOR
 
PART 21--OCCUPANCY OF CABIN SITES ON PUBLIC CONSERVATION AND RECREATION AREAS--Table of Contents
 
Sec. 21.3  Definitions.

    (a) Public recreation area or recreation area means any land, title 
to which is in the United States and under the administration or 
jurisdiction of the Department of the Interior that is suitable for 
recreational purposes, including all such areas of the National Park 
System not excepted by Sec. 21.2, Bureau of Reclamation Reservoir areas, 
and any other areas dedicated to or administered by the Department for 
public recreational use.
    (b) Conservation area means any land, title to which is in the 
United States and under the administration or jurisdiction of the 
Department of the Interior that is designated for fish, wildlife,

[[Page 432]]

or other conservation purposes, including all such areas of the National 
Wildlife Refuge Systems, National Fish Hatchery Systems, and any other 
such areas administered by the U.S. Fish and Wildlife Service; also, 
land administered by the Bureau of Land Management and suitable for 
conservation or protection of fish or wildlife.
    (c) Permit means any lease, license, or other contract whereby a 
public recreation or conservation area is made available, in whole or 
part, to an individual or group for recreational purposes for a 
stipulated period of time, but does not include leases or transfers to 
other Federal or non-Federal public agencies.
    (d) Cabin site means any area within a public recreation or 
conservation area whose occupancy and use is granted to an individual or 
group for a period of time by permit.
    (e) Substantial improvement means any building, structure, or other 
relatively permanent facility or improvement affixed to a cabin site, 
utilized for human occupancy or related purposes, and costing or worth 
$1,000 or more. It does not include trailers or similar removable 
facilities.
    (f) Investment in a substantial improvement refers to the basic 
expenditure of moneys or property in kind in connection with a 
particular improvement. Thus, for example, where property is conveyed by 
testamentary or inter vivos gift, the donee will be seen only as 
occupying the position of the donor with respect to the time and amount 
of the investment since it was the donor who made the investment.
    (g) Amortization is the process whereby the investor in a 
substantial improvement derives sufficient use and/or economic benefit 
from the improvement over a period of time as to reasonably compensate 
for his investment.
    (h) Trespasser means any person who is occupying land in a public 
recreation or conservation area without a valid permit.
    (i) Authorized Officer means any person or persons designated by the 
head of any bureau or office of the Department with administrative 
jurisdiction over a particular conservation or recreation area, to make 
determinations and take other actions, consistent with the regulations 
in this part with respect to such area.