Sec. 1. 20-A MRSA §6302, as enacted by PL 1991, c. 181, §2, is amended to read:

§6302. Air quality in school buildings

1. Applicability. This section applies to school buildings subject to basic school approval under section 4502 in which the heating, ventilation and air-conditioning system is mechanically driven.

2. Operation. Each school administrative unit shall ensure that the maintain heating, ventilation and air-conditioning system is systems that are:

A. Maintained and operated to provide at least the quantity of outdoor quality of indoor air required by the state building standards code in effect at the time the building permit was issued or the heating, ventilation and air- conditioning system was installed, whichever is later current standards of the Occupational Safety Health Administration, the National Institute of Occupational Safety and Health and the American Society of Heating, Refrigerating and Air-conditioning Engineers or any of their successor organizations for air flow, air quality, air composition and air exchange rate; and

B. Operated continuously during school activity hours except:

(1) During scheduled maintenance and emergency repairs; and

(2) During periods for which school officials can demonstrate to the commissioner's satisfaction that the quantity of outdoor air supplied by an air supply system that is not mechanically driven and by infiltration meets the outdoor air supply rate air quality standards required by paragraph A.

3. Inspection and record. Each school administrative unit is responsible for:

A. Inspection of Monitoring or contracting with a qualified professional to monitor the heating, ventilation and air- conditioning system systems in its schools and filing with the Department of Human Services, Bureau of Health by the first of each month a report on the quality of air in the school.__The report must be on a form that is developed by the Bureau of Health and the Department of Administrative and Financial Services, Bureau of General Services, Division of Safety and Environmental Services and that includes each