The operator of each outdoor theatre operated for the display of moving pictures shall provide at all times, when such theatre shall be in operation, such number of mobile carbon dioxide tanks or similar appliances, as shall be necessary for fire protection, or as shall be determined to be necessary by the member of the governing body of the municipality in which the theatre is located, who is in charge of fire protection therein or, if there be no such member, then by the mayor, chairman of the township committee or other chief executive officer of such municipality, and shall cause each employee of said theatre to be instructed in the use of such tanks or appliances for fire protection.
N.J.S. § 5:3-21.1