No system of water supply, plumbing, sewage, garbage or refuse disposal for institutions shall be installed nor shall any such system be materially altered or extended until complete plans and specifications for the installation, alteration or extension, together with such information as may be required, have been submitted to and approved by the department and divisions of building and fire protection. (Mont. Co. Code 1965, § 89-26; 1972 L.M.C., ch. 16, § 13; 1980 L.M.C., ch. 27, § 1.)