(1) Travel by air is permissible on tour or on transfer-
(a) in the case of Members of the Board or of Committees of the Board.
(b) in the case of an officer of the Board who is in receipt of actual pay of Rs.4100/- and above at his discretion. [GSR 1038(E)]
(c) in the case of an officer to whom clause (b) does not apply, whenever the competent authority certifies that air travel is urgent and necessary in the Board’s interest.
(2) An employee authorized to travel by air on tour is entitled to mileage allowance equal to one standard air fare for the journey and in addition draw daily allowance for the entire absence from headquarters starting with the departure from headquarters and ending with the arrival at headquarters.