1. The Iowa Plumbing and Mechanical Systems Board licenses and regulates plumbing and mechanical systems 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”)
2. Anyone working in Iowa plumbing and mechanical systems trades, or contracting for those services, 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.”)