(1) This subchapter is adopted to protect the public health, safety, and welfare by providing specific cleanup standards for inhabitable property contaminated by clandestine methamphetamine labs (CML). This subchapter establishes a voluntary program for property owners to obtain department confirmation that the decontamination standards established by the department have been met, for purposes of liability immunity pursuant to 75-10-1305 (4), MCA, and for purposes of removing property from the list of contaminated property maintained by the department pursuant to 75-10-1306 , MCA.