A rotorcraft operator's exposition must include the following:
(a) a description of the circumstances in which the operator may assign a flight crew member to duty on 2 or more different multi - engine rotorcraft;
(b) the combinations of different rotorcraft that a single flight crew member may be assigned to duty on by the operator;
(c) the flying experience, checks and training that a flight crew member must gain or complete, while the flight crew member is employed by the operator, before being assigned to duty on 2 or more different multi - engine rotorcraft;
(d) procedures to ensure that, if a flight crew member is assigned to duty on 2 or more different multi - engine rotorcraft within one tour of duty, the flight crew member has adequate time between flights on the different rotorcraft for the flight crew member to prepare for duty.