If an operator assigns crew members to standby or to any duty at the airport, the following shall apply in accordance with the certification specifications applicable to the type of operation: ... (b) a crew member is considered on airport standby from reporting at the reporting point until the end of the notified airport standby period; (c) airport standby shall count in full as duty period for the purpose of points ORO.FTL.210 and ORO.FTL.235; ...