Article IX
Sec. 9: All specific taxes, except general sales and use taxes and regulatory fees, imposed directly or indirectly on fuels sold or used to propel motor vehicles upon highways and on registered motor vehicles shall, after the payment of necessary collection expenses, be used exclusively for highway purposes as defined by law. None of the revenues from such specific taxes shall be used for any highway patrol purposes by law enforcement agencies. Not more than one eighteenth of the tax on motor fuels may be diverted from highway purposes for public transportation purposes as defined by law.
