Data sources

What it is. The Arizona Registrar of Contractors (ROC) licenses every contracting business in Arizona under the Arizona contractor licensing statutes (A.R.S. Title 32, Chapter 10). Plumbing work of $1,000 or more (labor + materials), or any job that requires a permit, needs an active C-37 (commercial), R-37 (residential), or CR-37 (dual) Plumbing classification. Each license record carries the business name, license number, classifications, bond, and workers'-compensation status -- all publicly checkable through the ROC contractor search.

How we use it. We import actively licensed plumbing contractors and tag them with source_name='AZ ROC' so they can be filtered or removed in bulk if the licensing relationship ever changes. Cert chips on each profile name the specific ROC classification held.

Refresh cadence. Re-pulled quarterly; on-demand when a license lapses.

Citation: Arizona Registrar of Contractors (roc.az.gov)

What it is. The ROC's public contractor-search application. Anyone can look up a license number or business name and see the classifications held, license status, bond information, and any disciplinary actions -- the same tool we tell homeowners to use before hiring.

How we use it. Used record-by-record to confirm license status when a listing is claimed, verified, or flagged -- and to spot-check imported rows. Statuses found here are what drive a listing's credential chips staying or going.

Refresh cadence. Checked at claim/verification time and on lapse reports.

Citation: AZ ROC Contractor Search (azroc.my.site.com)

What it is. Large Arizona cities (Phoenix, Tucson, Mesa, Chandler, Scottsdale and others) publish contractor and permit records through their planning and development departments -- for example the Phoenix Planning & Development Department. A contractor pulling plumbing permits inside city limits appears in these public rolls.

How we use it. Used as a company-level cross-check and tagged with source_name='Municipal Registration' where a city roll is the primary source. Statewide AZ coverage flows through AZ ROC.

Refresh cadence. Re-pulled quarterly.

Citation: City development departments (e.g. phoenix.gov/pdd)

What it is. The Metro Phoenix chapter of the Plumbing-Heating-Cooling Contractors Association (PHCC), Arizona's arm of the oldest trade organization in the construction industry. Its public member directory lists member firms that invest in apprenticeship, training, and code-compliance standards.

How we use it. Member firms are matched against listings we already have and tagged with the 'PHCC Member' credential. We do not auto-create listings from association membership alone.

Refresh cadence. Re-pulled quarterly.

Citation: Metro Phoenix PHCC (metrophcc.org)

What it is. The Arizona Corporation Commission publishes the public business-entity database -- corporations and LLCs registered to do business in Arizona, with formation date and good-standing status.

How we use it. Used during verification to confirm a claimed plumbing business is a registered Arizona entity in good standing. We do not import listings from this source; it is a cross-check only.

Refresh cadence. Checked at verification time.

Citation: Arizona Corporation Commission eCorp (ecorp.azcc.gov)