In any building or facility constructed specifically as a shopping center after September 19, 1985, there shall be installed a minimum of 2 toilets for the use of the public. There shall be at least one separate toilet for each sex and the toilets provided shall be clearly marked, maintained in a sanitary condition and in good repair. Lavatory facilities shall be located within or immediately adjacent to all toilet rooms or vestibules. There shall be no charge for their use.   [PL 1985, c. 737, Pt. A, §53 (RPR).]