522 CMR 9.02
Construction
All Refrigeration and Air Conditioning Systems under the scope of 522 CMR 9.00 shall be
initially constructed in accordance with ASHRAE 15 Safety Standards for Refrigeration Systems
and ASHRAE 34 Designation and Safety Classification of Refrigerants for the Installation of
Refrigeration Systems and ANSI/IIAR 2, Standard for Equipment, Design and Installation of
Closed-circuit Ammonia Mechanical Refrigerating Systems.