Section 216-RICR-50-15-4.5 - Maintenance of Air Quality ConditionsA. The owner/operator of an ice arena shall use the following methods to maintain acceptable air quality conditions: 1. Mechanical adjustment (tuning) and maintenance of the internal combustion engines of all ice maintenance machines, internal combustion heaters and other devices which emit carbon monoxide and/or nitrogen dioxide, according to the manufacturers' recommendations; and2. Proper ventilation of the ice arena; and/or3. Another method approved in writing by the Director.216 R.I. Code R. 216-RICR-50-15-4.5