PUBLIC LAW 97-248—SEPT. 3, 1982 (iii) snow removal equipment; (iv) aviation-related w e a the r reporting equipment; or (v) equipment to m e a s u r e r u n w a y surface friction; and (C) any acquisition of land or of any interest therein, or of any easement through or other interest in airspace, including land for future airport development, which is necessary to permit any airport development described in subparagraph (A) or (B) of this paragraph or to remove, mitigate, prevent, or limit the establishment of airport hazards. (3) "Airport h a z a r d " means any s t r u c t u r e or object of n a t u r a l growth located on or in the vicinity of a public-use airport, or any use of land n e a r such an airport, which obstructs the airspace required for the flight of aircraft in landing or taking off at such airport or is otherwise hazardous to such landing or taking off of aircraft. (4) "Airport p l a n n i n g " means p l a n n i n g as defined by such regulations as the Secretary shall prescribe, and includes integrated airport system planning. (5) "Commercial service a i r p o r t " means a public airport which is determined by the Secretary to e n p l a n e annual l y 2,500 or more passengers and receive scheduled passenger service of aircraft. (6) " Government aircraft" means aircraft owned and operated by the United States. (7) " I n t e g r a t e d airport system p l a n n i n g " means the initial as well as continuing development for p l a n n i n g purposes of information and guidance to determine the extent, type, n a t u r e, location, and t i m i n g of airport development needed in a specific a r e a to establish a viable, balanced, and integrated system of public-use airports. It includes identification of system needs, development of estimates of systemwide development costs, and the conduct of such studies, surveys, and other p l a n n i n g actions, including those related to airport access, as may be necessary to determine the short-, intermediate-, and long-range aeronautical d e m and s required to be met by a part i c u l a r system of airports. It also includes the establishment by a State of standards, other than standard s for safety of approaches, for airport development at public-use airports which a r e not p r i m a r y airports. (8) "Landing a r e a " means that a r e a used or intended to be used for the landing, takeoff, or surface m a n e u v e r i n g of aircraft. (9) "Passengers e n p l a n e d " means domestic, territorial, and international revenue passenger e n p l a n e m e n t s in the States in scheduled and nonscheduled service of aircraft in i n t r a s t a t e, i n t e r s t a t e, and foreign commerce as shall be determined by the Secretary pursuant to such regulations as the Secretary may prescribe. (10) " P l a n n i n g agency" means any p l a n n i n g agency designated by the Secretary which is authorized by the laws of the State or States or political subdivisions concerned to engage in areawide planning for the areas in which assistance under this title is to be used. (11) " P r i m a r y a i r p o r t " means a commercial service airport which is determined by the Secretary to have.01 percent or
96 STAT. 673
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