§ 31-23-14.1 Fire extinguishers. – Every truck operated, owned, or leased by the state of Rhode Island or a political subdivision of the state shall be equipped with a fire extinguisher. The fire extinguisher shall contain a potassium bicarbonate base dry chemical fire extinguishing agent having an underwriter's laboratory rating of six (6) Band a capacity of not less than two and one-half pounds (2 1/2 lbs.).