Section 129.120 - Alternative standards(a) An OSV of 19.8 meters (65 feet) in length or less may meet the following requirements of the American Yacht and Boat Council Projects, where applicable, instead of § 129.340 of this part:(1) E-1, Bonding of Direct Current Systems.(2) E-8, AC Electrical Systems on Boats.(3) E-9, DC Electrical Systems on Boats.(b) An OSV with an electrical installation operating at a potential of less than 50 volts may comply with 33 CFR 183.430 instead of § 129.340 of this part.