Iowa Admin. Code rr. 641-23.1
The definitions set forth in Iowa Code section 105.2 are incorporated herein by reference. For purposes of these rules, the following additional definitions apply:
"Inactive license" means a license that is available for a plumbing, mechanical, HVAC-refrigeration, sheet metal, or hydronic professional who is not actively engaged in running a business or working in the business in the corresponding discipline at that license level. An inactive license must be renewed prior to its expiration date. An inactive license is not valid for practice until the license is reactivated by the board.
"Lapsed license" means a license that has expired. A lapsed license is no longer valid for practice.
"Licensee" means a person holding a license issued by the board, including an apprentice, journeyperson, or master license in the plumbing, mechanical, HVAC-refrigeration, sheet metal, or hydronics trades; a combined license; a special, restricted sublicense; or a medical gas certificate.
"Master of record" means an individual possessing an active master license under Iowa Code chapter 105 who shall be responsible for the proper designing, installing, and repairing of plumbing, mechanical, HVAC-refrigeration, sheet metal, or hydronic systems and who is actively in charge of the plumbing, mechanical, HVAC-refrigeration, sheet metal, or hydronic work of a contractor.
Iowa Admin. Code rr. 641-23.1