Section 675.011 - Required Evacuation(A) If air levels of carbon monoxide or nitrogen dioxide exceed the evacuation air levels of 105 CMR 675.008(C), the operator shall:(1) immediately evacuate all people from the interior of the indoor skating rink;(2) contact the local fire department as soon as possible to assist in the evacuation of the facility and to assess the hazard;(3) contact the local board of health upon completion of the evacuation;(4) contact the Bureau within two hours of the evacuation.(B) Re-occupancy of the indoor skating rink after evacuation under 105 CMR 675.011 can only occur if:(1) three consecutive air samples taken by the operator within no greater than a three hour period and taken in accordance with the air sampling procedures set forth in 105 CMR 675.006(A)(2) and (4) indicate that the air levels of carbon monoxide or nitrogen dioxide have been reduced below the correction air levels;(2) appropriate long-term corrective measures have been taken to prevent further future exceedances of the correction air levels; and(3) the air levels of carbon monoxide and nitrogen dioxide are found to be below the correction air levels through one or more independent measurements taken by the local fire department, local health department or the Bureau.