(1) An existing building not currently used as a school may not be used as a school without the prior approval of the department or local health authority.

(a) When a proposal to use an existing building as a school involves physical modification, plans meeting the requirements of (1) of ARM 37.111.804 must be submitted to the department or local health authority for review and approval. If no physical modification is involved, the department or local health authority may waive the requirement for submission of plans if an inspection by the department or local health authority indicates that the proposed school meets the requirements of this subchapter.

(2) Whenever compliance with this subchapter requires capital expenditures for the modification of an existing building currently being used as a school on April 11, 1986, compliance with such requirements must be achieved no later than December 31, 1987.