The revisions to 2015 IFC, Section 606.12 clarify the code requirements and add references to two (2) International Institute of Ammonia Refrigeration (IIAR) standards and one American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) standard for design and operation of ammonia refrigeration systems. This edition of the IFC also pulls in a lot of Ammonia Refrigeration systems that had been outside the PSM/RMP bubble because they were under 10,000 pounds, but now, the 2015 IFC basically requires new processes to comply with IIAR-2 for system design and installation and IIAR-7 for operating procedures, as well as ASHRAE 15 for other aspects. So essentially, regardless if your process is over 10,000 pounds, all Mechanical Refrigeration systems built in states that adopt this 2015 IFC will be built and managed very much like a PSM/RMP process. Here’s what changes in the 2015 IFC for Mechanical Refrigeration…