PUBLIC LAW 103-272—JULY 5, 1994 108 STAT. 1251 tation, as the Secretary determines under regulations the Secretary prescribes. (10) "passenger boardings"— (A) means revenue passenger boardings on an aircraft in service in air commerce as the Secretary determines under regulations the Secretary prescribes; and (B) includes passengers who continue on an aircraft in international flight that stops at an airport in the 48 contiguous States, Alaska, or Hawaii for a nontraffic purpose. (11) "primary airport" means a commercial service airport the Secretary determines to have more than 10,000 passenger boardings each year. (12) "project" means a project, separate projects included in one project grant application, or all projects to be undertaken at an airport in a fiscal year, to achieve airport development or airport planning. (13) "project cost" means a cost involved in carrying out a project. (14) "project grant" means a grant of money the Secretary makes to a sponsor to carry out at least one project. (15) "public agency" means— (A) a State or political subdivision of a State; (B) a tax-supported organization; or (C) an Indian tribe or pueblo. (16) "public airport" means an airport used or intended to be used for public purposes— (A) that is under the control of a public agency; and (B) of which the area used or intended to be used for the landing, taking off, or surface maneuvering of aircraft is publicly owned. (17) "public-use airport" means— (A) a public airport; or (B) a privately-owned airport used or intended to be used for public purposes that is— (i) a reliever airport; or (ii) detennined by the Secretary to have at least 2,500 passenger boardings each year and to receive scheduled passenger aircraft service. (18) "reliever airport" means an airport the Secretary designates to relieve congestion at a commercial service airport and to provide more general aviation access to the overall community. (19) "sponsor" means— (A) a public agency that submits to the Secretary under this subchapter an application for financial assistance; and (B) a private owner of a public-use airport that submits to the Secretary under this subchapter an application for financial assistance for the airport. (20) "State" means a State of the United States, the District of Columbia, Puerto Rico, the Virgin Islands, American Samoa, the Northern Mariana Islands, the Trust Territory of the Pacific Islands, and Guam. § 47103. National plan of integrated airport systems (a) GENERAL REQUIREMENTS AND CONSIDERATIONS.—The Secretary of Transportation shall maintain the plan for developing
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