The Department hereby determines that the following authorizations are not licenses “with reference to an activity of a continuing nature” within the meaning of 5 U.S.C. § 558(c):

(a) Authorizations granted for a specified period of 180 days or less; and

(b) Authorizations, other than those granted under 49 U.S.C. § 41102, that by their terms are subject to termination at an uncertain date upon the happening of an event, including fulfillment of a condition subsequent or occurrence of a contingency.

[SPR-184, 47 FR 7212, Feb. 18, 1982, as amended by Doc. No. DOT-OST-2014-0140, 84 FR 15940, Apr. 16, 2019]