1. The Iowa Plumbing and Mechanical Systems Board licenses and regulates HVAC and refrigeration trades. (Source: https://dial.iowa.gov/about-dial/boards-and-commissions/pmsb-board; verbatim: “The Iowa Plumbing and Mechanical Systems Board was established to license and regulate those working in the plumbing and mechanical systems (hydronic, HVAC, refrigeration, sheet metal) trades.”)
2. Anyone working in Iowa plumbing and mechanical systems trades must be licensed by the board unless an exemption applies. (Source: https://dial.iowa.gov/about-dial/boards-and-commissions/pmsb-board; verbatim: “Anyone working in the state of Iowa in the plumbing and mechanical systems trades, or contracting for services in these trades, is required to be licensed by the board.”)
3. Federal EPA Section 608 certification applies to technicians who maintain, service, repair, or dispose of equipment that could release covered refrigerants. (Source: https://www.epa.gov/section608/section-608-technician-certification; verbatim: “technicians who maintain, service, repair, or dispose of equipment that could release ozone depleting refrigerants into the atmosphere must be certified.”)