contractor
(3) the term “contractor” means— (A) a person that performs, under contract with a passenger air carrier conducting operations under part 121 of title 14, Code of Federal Regulations — (i) catering functions; or (ii) functions on the property of an airport that are directly related to the air transportation of persons, property, or mail, including but not limited to the loading and unloading of property on aircraft; assistance to passengers under part 382 of title 14, Code of Federal Regulations ; security; airport ticketing and check-in functions; ground-handling of aircraft; or aircraft cleaning and sanitization functions and waste removal; or (B) a subcontractor that performs such functions;
Source
15 USC § 9071(3)
Scoping language
None identified, default scope is assumed to be the parent (part B) of this section.