I have participated in both U.S. and international codes and standards development for over 40 years and, although the process can be cumbersome, and, yes, a bit frustrating, I believe in the basic principles of consensus and due process which are the foundation of all valid standards and codes development processes. In my opinion, an additional foundational strength of the model code development process is the principle of referencing consensus product standards in model codes which results in the ability for supply chain to efficiently provide safe and high-quality products to the marketplace based on consistent and nationally accepted requirements. All of these principles were highlighted in recent decisions of the International Plumbing and Mechanical Officials (IAPMO) Board of Directors related to industry appeals on proposed revisions to the IAPMO Uniform Mechanical Code.
ASA and HARDI have been engaged with other industry organizations in pursuing changes to the IAPMO UMC related to the use of A2L refrigerants and the acceptance of certain joining systems used in refrigeration systems. Recently, the final stage of the process was completed with the IAPMO Board considering petitions from industry to reconsider decisions reached by the UMC Technical Committee (TC) and the IAPMO Standards Council (SC). Fortunately, the IAPMO Board reviewed the petitions and ruled in support of the industry on the following proposals: