(a) To cooperate with the agencies of this and other states and of the Federal government which are connected with national defense in the formulation and execution of plans for the rapid and safe movement over the highways of troops, vehicles of a military nature and materials affecting the national defense.

(b) To coordinate the activities of the Department of Highways, the Department of Revenue and the Pennsylvania State Police in a manner which will best serve to effectuate any such plan for the rapid and safe movement of troops, vehicles and materials as referred to in paragraph (a) of this section.

(c) To solicit the cooperation of officials of the various political subdivisions of the Commonwealth in the proper execution of such plans.

(d) To take an inventory by counties of the trucks and busses in the Commonwealth publicly and privately owned which would be available in case of emergency affecting the national defense.