placed under any available cover. If possible, the trouble is diagnosed and repaired at this point. If the service company maintenance personnel decide that repair is impossible within the time limit im- posed by the situation, the vehicle is either towed or abandoned. If towed, it is repaired when the unit halts or goes into bivouac. The decision to abandon a vehicle, either temporarily or permanently, is made only by an officer, or by a noncommissioned officer who has been given this authority. In route march, an abandoned vehicle is reported to the next higher headquarters in order that it may be picked up by a suitable maintenance or salvage unit. For the detailed procedure on abandonment, see FM 25- 10.
(4) During combat, the maintenance section op- erates a mobile repair shop in the regimental train bivouac where unserviceable reparable vehicles are brought. Sometimes it is preferable to send repair crews to make repairs on such vehicles at the spot where rendered inoperative.
g. Maintenance forms. Forms, records, and re- ports are designed to serve necessary and useful purposes. Responsibility for the proper execution of these forms rests upon commanding officers of all units operating and maintaining motor vehicles. It is emphasized, however, that forms, records, and re- ports are merely aids. They are not a substitute for thorough practical work, physical check, and active