Vacation buffer and training:
25.C.11c. Recurrent training bids shall be awarded by seniority, provided, however, that a pilot shall not be awarded a recurrent training session in conflict with any other known absence (e.g., vacation period, leave of absence), or carry-out activities from the previous bid period (e.g., carry-out trip or R-days). If a pilot bids a recurrent training session in conflict with a vacation buffer, that buffer will be deemed to have been waived.