- (a) Towing vessels contracted for construction prior to November 19, 1952, must meet the applicable provisions of this part concerning the number and general type of equipment required.
- (b) Existing equipment and installations previously approved, but not meeting the applicable requirements for approval by the Commandant, may be continued in service so long as they are in good condition.
- (c) All new installations and replacements must meet the requirements of this part.