Every motor vehicle, including any van or trailer, to which persons are admitted for the purpose of purchasing merchandise, including books, or for the purpose of viewing any exhibit, shall in addition to an entrance door be equipped with a separate exit door. Such exit shall be plainly identified as an exit and shall be kept unobstructed at all times.

L.1971, c. 457, s. 1, eff. Feb. 29, 1972.