According to Arizona ROC regulations, which of the following would require a separate contractor license?
Correct Answer
B) Plumbing rough-in work on a residential project
Plumbing work requires a separate specialty contractor license in Arizona, even when performed as part of a larger project.
Why This Is the Correct Answer
In Arizona, plumbing is a regulated specialty trade that requires its own separate ROC license classification. Even when plumbing rough-in work is performed as part of a larger residential project managed by a general contractor, the plumbing work itself must be performed by or under a licensed plumbing contractor — the general contractor's license does not cover it.
Why the Other Options Are Wrong
Option A: Installing decorative concrete stamping
Decorative concrete stamping is considered a subset of concrete work, which falls within the scope of many general contractor classifications. It does not require a separate specialty license under Arizona ROC rules.
Option C: Painting exterior trim as part of a roofing project
Painting exterior trim as part of a roofing project can be classified as incidental work within the roofing contractor's scope of work. Incidental painting does not require a separate painting contractor license when it is ancillary to the primary licensed trade.
Option D: Electrical work performed by the general contractor's employees
Electrical work performed by the general contractor's own employees can fall under the general contractor's license in certain circumstances, particularly for low-voltage or incidental work. However, licensed electrical work typically requires a separate license — this answer is a near-miss, but the question tests the clearest example, which is plumbing rough-in.
Memory Technique
In Arizona, the 'Big Three' trades always need their own license: Plumbing, Electrical, and HVAC — no matter what the GC says. 'PEH = Separate.' Rough-in plumbing is core plumbing work, firmly in the 'P' category.
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According to A.R.S. Title 32, which of the following can serve as a qualifying party for multiple contracting businesses?
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A contractor files a preliminary 20-day notice on a residential project in Arizona on March 1st. The contractor's last day of work was March 15th. What is the deadline to file a mechanics' lien under A.R.S. 33-981?