FAA Federal Aviation Regulations (FARS, 14 CFR)

If in the Administrator's judgment, the overall safety and security of the airport, and aircraft operator or foreign air carrier operations are not diminished, the Administrator may approve a security program that provides for the use of alternate measures. Such a program may be considered only for an operator of an airport at which service by aircraft operators or foreign air carriers under §§108.101 or 129.25 of this chapter is determined by the Administrator to be seasonal or infrequent.