RS 32:1602 - Hydrocarbon gas powered motor vehicles, placard required It shall be unlawful to operate any hydrocarbon gas powered motor vehicle, registered in Louisiana, with a concealed tank for the fuel, upon any public highway or street in this state, which does not have conspicuously displayed, a placard stating that the motor vehicle is powered by hydrocarbon gas. Added by Acts 1983, No. 117, §1, eff. Jan. 1, 1984.
Louisiana Legal Code