The Air Force authorizes use of its airfields for a specific purpose by a named individual or company. The authorization cannot be transferred to a second or third party and does not extend to use for other purposes. An approved landing permit does not obligate the Air Force to provide supplies, equipment, or facilities other than the landing, taxiing, and parking areas. The aircraft crew and passengers are only authorized activities at the installation directly related to the purpose for which use is granted. All users are expected to submit their application (DD Forms 2400, 2401, and 2402) at least 30 days before intended use and, except for use as a weather alternate, CRAF alternate, or emergency landing site, must contact the appropriate installation commander or a designated representative for final landing approval at least 24 hours before arrival. Failure to comply with either time limit may result in denied landing rights.