(1) A Presiding Officer may, when travelling by railway on tour on public business reserve by requisition :—
(a) one first class compartment ; or
(b) engage a two or four berth air-conditioned compartment ; or
(c) a saloon ;
Provided that, except in exceptional circumstances duly certified by a Presiding Officer,—
(i) a saloon shall not ordinarily be requisitioned, unless the tour extends over more than one day (between sunrise and sunset) ; and
(ii) a six or eight-wheeled saloon shall not ordinarily be requisitioned when four-wheeled saloon is available, and can be attached to the train by which he desires to travel, in exceptional circumstances either or both these restrictions may be waived.
Explanation.—As to what constitute exceptional circumstances, the certificate of a Presiding Officer shall be accepted as final.
(2) While traveling by railway in a reserved compartment consisting of two berths [i.e. a (coupe)] under clause (a) or (b) of sub-rule (1), a Presiding Officer may use the second berth for taking his wife or dependent son or daughter with him in that compartment, free of charge.
(3) Without prejudice to the provisions of sub-rule (1) and (2) there shall also be paid to a Presiding Officer, when travelling by railway on tour on public business a sum equal to one 1[air-conditioned] first class fare for a journey by railway irrespective of the class in which a Presiding Officer actually travels.