Subsection R156-55c-102(2) is modified to revise the definition of "minor plumbing work that is incidental" to include installation, as well as repair or replacement, of the plumbing appliances listed in Subsection R156-55c-102(2)(a). Further, Subsection R156-55c-102(2)(b) is modified to include only the repair or replacement of certain listed residential type plumbing appurtenances, fixtures, and systems, where the cost of the repair or replacement, including all labor and material and changes or additions to the agreed-upon work, does not exceed $300. Finally, the terms plumbing appliances, appurtenances, fixtures, and systems, in Subsection R156-55c-102(4), are clarified to have the same meaning and interpretation as defined by Title 15A, State Construction and Fire Codes Act. In Section R156-55c-302b, the rule citation reference was updated in Subsection R156-55c-302b(2)(a). The rule citation reference was updated in Subsection R156-55c-302b(3).