PART 153—AIRPORT OPERATIONS Authority: 49 U.S.C. 106(g), 40113, and 44701. Source: Docket FAA-2007-29237, 73 FR 47827, Aug. 15, 2008, unless otherwise noted. Subpart A—Aviation Safety Inspector Access § 153.1 Applicability. This subpart prescribes requirements governing Aviation Safety Inspector access to public-use airports and facilities to perform official duties. § 153.3 Definitions. The following definitions apply in this subpart: Air Operations Area (AOA) Airport (1) A public airport; or (2) A privately-owned airport used or intended to be used for public purposes that is— (i) A reliever airport; or (ii) Determined by the Secretary to have at least 2,500 passenger boardings each year and to receive scheduled passenger aircraft service. Aviation Safety Inspector FAA Form 110A Secured area Security Identification Display Area (SIDA) § 153.5 Aviation safety inspector airport access. Airports, aircraft operators, aircraft owners, airport tenants, and air agencies must grant Aviation Safety Inspectors bearing FAA Form 110A free and uninterrupted access to public-use airports and facilities, including AOAs, SIDAs, and other secured and restricted areas. Aviation Safety Inspectors displaying FAA Form 110A do not require access media or identification media issued or approved by an airport operator or aircraft operator in order to inspect or test compliance, or perform other such duties as the FAA may direct. Subpart B [Reserved]