# 46 C.F.R. § 143.520 (2026): Towing vessels built to American Boat and Yacht Council standards

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_520

## Section

- **Citation:** 46 C.F.R. § 143.520 (2026)
- **Heading:** Towing vessels built to American Boat and Yacht Council standards
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 46 CFR: Shipping / Chapter I: COAST GUARD, DEPARTMENT OF HOMELAND SECURITY / Part 143: MACHINERY AND ELECTRICAL SYSTEMS AND EQUIPMENT / Subpart C: Requirements for New Towing Vessels / § 143.520: § 143.520   Towing vessels built to American Boat and Yacht Council standards.

## Text

(a) Except as noted in paragraphs (b) and (c) of this section, a new towing vessel 65 feet (19.8 meters) or less in length built to conform with the American Boat and Yacht Council (ABYC) standards listed in this paragraph (a) (incorporated by reference, see § 136.112 of this subchapter), complies with this subpart:
(1) E-11 (2003)—AC & DC Electrical Systems on Boats;
(2) H-2 (2002)—Ventilation of Boats Using Gasoline;
(2) H-22 (2005)—Electric Bilge Pump Systems;
(3) H-24 (2007)—Gasoline Fuel Systems;
(4) H-25 (2003)—Portable Gasoline Fuel Systems;
(5) H-32 (2004)—Ventilation of Boats Using Diesel Fuel;
(6) H-33 (2005)—Diesel Fuel Systems;
(7) P-1 (2002)—Installation of Exhaust Systems for Propulsion and Auxiliary Engines; and
(8) P-4 (2004)—Marine Inboard Engines and Transmissions.
(b) New towing vessels, 65 feet or less in length, built to the ABYC standards specified in this section are considered compliant with subpart B of this part except for the readiness and testing requirements of § 143.245.
(c) If the vessel moves tank barges carrying oil or hazardous material in bulk, it must meet either the requirements described in §§ 143.585 through 143.595 or the requirements described in § 143.600.

## Nearby sections

- [46 C.F.R. § 143.500 (2026) § 143.500   Applicability.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_500.md)
- [46 C.F.R. § 143.510 (2026) § 143.510   Verification of compliance with design standards.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_510.md)
- [46 C.F.R. § 143.515 (2026) § 143.515   Towing vessels built to recognized classification society rules.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_515.md)
- [46 C.F.R. § 143.520 (2026) § 143.520   Towing vessels built to American Boat and Yacht Council standards.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_520.md)
- [46 C.F.R. § 143.540 (2026) § 143.540   Pumps, pipes, valves, and fittings for essential systems.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_540.md)
- [46 C.F.R. § 143.545 (2026) § 143.545   Pressure vessels.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_545.md)
- [46 C.F.R. § 143.550 (2026) § 143.550   Steering systems.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_550.md)
- [46 C.F.R. § 143.555 (2026) § 143.555   Electrical power sources, generators, and motors.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_555.md)
- [46 C.F.R. § 143.560 (2026) § 143.560   Electrical distribution panels and switchboards.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_560.md)
- [46 C.F.R. § 143.565 (2026) § 143.565   Electrical overcurrent protection other than generators and motors.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_565.md)
- [46 C.F.R. § 143.570 (2026) § 143.570   Electrical grounding and ground detection.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_570.md)
- [46 C.F.R. § 143.575 (2026) § 143.575   Electrical conductors, connections, and equipment.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_575.md)
- [46 C.F.R. § 143.580 (2026) § 143.580   Alternative electrical installations.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_580.md)
- [46 C.F.R. § 143.585 (2026) § 143.585   General requirements for propulsion, steering, and related controls on vessels that move tank barges carrying oil or hazardous material in bulk.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_585.md)

---

Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T46_P143_S143_520. Check the current official text before relying on it. Not legal advice.