Tex. Parks and Wildlife Code § 31.069: VENTILATORS.

Each motorboat and vessel, except an open boat, using as fuel any liquid of a volatile nature must have the equipment prescribed by the commandant of the Coast Guard designed to ventilate properly and efficiently the bilges of the engine and fuel tank compartments so as to remove any explosive or inflammable gases.

Acts 1975, 64th Leg., p. 1405, ch. 545, Sec. 1, eff. Sept. 1, 1975.