In this subchapter:

(1) Administrative Unit
The term "Administrative Unit" means a national forest or national grassland.

(2) Outfitter or guide
The term "outfitter or guide" means an individual, organization, or business who provides outfitting or guiding services, as defined in section 251.51 of title 36, Code of Federal Regulations.

(3) Partner
The term "partner" means a non-Federal entity that engages in a partnership.

(4) Partnership
The term "partnership" means arrangements between the Department of Agriculture or the Forest Service and a non-Federal entity that are voluntary, mutually beneficial, and entered into for the purpose of mutually agreed-upon objectives.

(5) Priority area
The term "priority area" means a well-defined region on National Forest System land selected by the Secretary under section 583k–3(a) of this title.

(6) Secretary
The term "Secretary" means the Secretary of Agriculture.

(7) Strategy
The term "strategy" means the National Forest System Trails Volunteer and Partnership Strategy authorized by section 583k–2(a) of this title.

(8) Trail maintenance
The term "trail maintenance" means any activity to maintain the usability and sustainability of trails within the National Forest System, including—

(A) ensuring trails are passable by the users for which they are managed;

(B) preventing environmental damage resulting from trail deterioration;

(C) protecting public safety; and

(D) averting future deferred maintenance costs.

(9) Volunteer
The term "volunteer" means an individual whose services are accepted by the Secretary without compensation under the Volunteers in the National Forests Act of 1972 (16 U.S.C. 558a et seq.).