4VAC15-430-150. Ventilation.
A. All motorboats or motor vessels, except open boats and as provided in subsections D and E of this section, the construction or decking over of which is commenced after April 25, 1940, and which use fuel having a flashpoint of 110°F, or less, shall have at least two ventilator ducts, fitted with cowls or their equivalent, for the efficient removal of explosive or flammable gases from the bilges of every engine and fuel tank compartment. There shall be at least one exhaust duct installed so as to extend from the open atmosphere to the lower portion of the bilge and at least one intake duct installed so as to extend to a point at least midway to the bilge or at least below the level of the carburetor air intake. The cowls shall be located and trimmed for maximum effectiveness and in such a manner so as to prevent displaced fumes from being recirculated.
B. As used in this section, the term open boats means those motorboats or motor vessels with all engine and fuel tank compartments, and other spaces to which explosive or flammable gases and vapors from these compartments may flow, open to the atmosphere and so arranged as to prevent the entrapment of such gases and vapors within the vessel.
C. Vessels built after July 31, 1980, which are manufactured or used primarily for noncommercial use; which are leased, rented, or chartered to another for the latter's noncommercial use; which are engaged in the carriage of six or fewer passengers for consideration; or which are in compliance with the requirements of the U.S. Coast Guard are exempted from these requirements.
D. Vessels built after July 31, 1978, which are manufactured or used primarily for noncommercial use; which are rented, leased, or chartered to another for the latter's noncommercial use; or which engage in conveying six or fewer passengers for consideration are exempted from the requirements of subsection A of this section for fuel tank compartments that:
1. Contain a permanently installed fuel tank if each electrical component is ignition protected; and
2. Contain fuel tanks that vent to the outside of the boat.
Statutory Authority
§§ 29.1-501, 29.1-502, 29.1-701, and 29.1-735 of the Code of Virginia.
Historical Notes
Derived from Virginia Register Volume 19, Issue 5, eff. January 1, 2003.