Maryland Transportation Section 22-225

      Any motor vehicle may be operated under the conditions specified in § 22-201.1 of this subtitle when equipped with two lighted lamps on its front capable of revealing persons and objects 75 feet ahead instead of lamps required in § 22-222 or § 22-224 of this subtitle, provided, however, that at no time may it be operated at a speed in excess of 20 miles an hour.