clearance valid

“clearance valid…”

An expression used in radio communications to indicate a departure time restriction issued to a pilot by air traffic control (either directly or through an authorized relay) when it is necessary to separate a departing aircraft from other traffic. This expression is used in conjunction with a specified time.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
The MMDA has given his office a road repair clearance valid up to Nov.