Section 377.4 - Certain authorizations with alternative termination datesUnless granted under 49 U.S.C. 41102 , an authorization that by its terms is subject to termination alternatively, either at an uncertain date upon the happening of an event or upon the arrival of a specified date:
(a) Will not be considered a "license with reference to an activity of a continuing nature" within the meaning of 5 U.S.C. 558(c) , if the event occurs before the specified date; and(b) Ordinarily (subject to interpretation under § 377.5 ) will be considered such a license, if the event does not occur before the specified date and that date is more than 180 days after the effective date of the authorization.SPR-184, 47 FR 7212, Feb. 18, 1982, as amended by Doc. No. DOT-OST-2014-0140, 84 FR 15940 , Apr. 16, 2019