This part contains requirements for the design, installation, and operation of primary and auxiliary machinery and electrical systems and equipment on towing vessels.

This part applies to all towing vessels subject to this subchapter. The specific applicability of requirements in each subpart is set forth in that subpart.

The definitions provided in § 136.110 of this subchapter apply to this part. In addition, the following definition applies exclusively to this part:

Independent means the equipment is arranged to perform its required function regardless of the state of operation, or failure, of other equipment.