654.4.
(a) For purposes of this section, “authorized classification society” has the same meaning as provided in Section 8.100 of Title 46 of the Code of Federal Regulations.(b) Prior to installation and use, any equipment installed on a commercial harbor craft that interacts with the propulsion system of the craft shall be approved for use with the propulsion system by the United States Coast Guard, at least one authorized classification society, and the manufacturer of the propulsion system. The equipment shall include an automatic override or bypass feature that ensures the propulsion system will not lose power and the operability of the harbor craft is not affected, regardless of the operational ability of the installed equipment.