§ 8531

In this subchapter: ((1)) ** Commercial use authorization** The term “commercial use authorization” means a commercial use authorization to provide services to visitors to units of the National Park System under subchapter II of chapter 1019 of title 54. ((2)) ** Multijurisdictional trip** The term “multijurisdictional trip” means a trip that— ((A)) uses 2 or more units of Federal recreational lands and waters; and ((B)) is under the jurisdiction of 2 or more Federal land management agencies. ((3)) ** Recreation service provider** The term “recreation service provider” has the meaning given the term in (as amended by section 311).section 6801 of this title ((4)) ** Special recreation permit** The term “special recreation permit” has the meaning given the term in (as amended by section 311).section 6801 of this title ((5)) ** Visitor-use day** The term “visitor-use day” means a visitor-use day, user day, launch, or other metric used by the Secretary concerned for purposes of authorizing use under a special recreation permit.