(1) This subchapter defines swimming pools and spas; establishes minimum standards for the construction, maintenance and operation of swimming pools and spas and associated facilities; regulates the inspection of such facilities, and provides for the enforcement of this subchapter.

(2) The intent of these rules is to assure a safe and sanitary environment in and around the public swimming pool and spa.

(3) All swimming pools or spas constructed after June 28, 1985, must be constructed in accordance with the requirements of this subchapter. Any swimming pool or spa in existence and in operation as of June 28, 1985, must comply with the requirements of ARM 37.111.1139 and must, as to any aspect of the pool or spa which is remodeled after June 28, 1985, conform to the requirements of this subchapter in effect at the time of the remodeling, provided that hot springs pools shall comply with the requirements of ARM 37.111.1156.