Verify a Colorado Plumber license

liveCO Contractor Licensing Board · profession key plumber

Live. We query the board directly for every check and the nightly canary is passing.

How Colorado Plumber license verification works

A Plumber in Colorado is licensed by the CO Contractor Licensing Board. PrimaryCheck looks the license up live at the board's public verification system (board lookup) by license number, or by name when no number is supplied. The record the board publishes is captured as evidence, hashed, and rendered into a proof PDF.

Fields returned for this board: status expires issued effective license_type license_method compact board_actions documents other_licenses data_as_of.

Board note: DORA license dataset data.colorado.gov/7s5z-vewr (daily; rowsUpdatedAt 2026-11-03) queried live over SODA, then the Division's PrintLicenseDetails.aspx?cred=&contact= page (states primary source verification) as live evidence; the print page sits behind a Human Verification CAPTCHA after bursts (falls back to the dataset row); interactive LicenseLookup.aspx is FormShield image-CAPTCHA gated; captured 2026-11-03; State Electrical Board ME/JW/RW and Plumbing Board MP/JP/RP are DORA; general contractors and HVAC are local in CO

What a Plumber license check returns

Field check	Passes when
`license_number`	Equal to the board's number, ignoring prefix and leading zeros
`name`	Last name or declared alias matches; first name exact or nickname
`license_type`	The record is a Plumber license, strictly (no near-miss types)
`status`	The board shows an active status; probation is active with a flag
`expires`	Expiration is on or after today, where the board publishes it
`disciplinary_actions`	Recorded and flagged with any order documents; never silently dropped

Verdicts: verified, discrepancy, not_found, unable_to_verify (with a reason), pending. See how verdicts are decided.

Verify a Colorado Plumber license by API

POST https://api.primarycheck.com/v1/verifications
{
  "person": { "firstName": "…", "lastName": "…" },
  "claims": [
    { "type": "license", "state": "CO", "profession": "plumber", "number": "…" }
  ],
  "purpose": "employment",
  "consent": { "consentId": "cons_…" }
}

Quickstart · License claim reference · Run one in the dashboard

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