CID's MM-1 classification requires four years of experience and covers plumbing systems — piping, fixtures, water heaters, water supply and drainage, swimming pools and spas, septic tanks and sewer lines. CID's 2026 rulemaking renamed MM-1 'Plumbing and fuel gas piping systems' and folded the old MM-2 natural gas class into MM-1 and MM-3; the adopted journeyman rule (effective August 1, 2026) already lets journeyman gas fitters work under MM-1. MM-98 covers all mechanical classifications.
Every individual doing plumbing needs a journeyman certificate (JP plumber or JPG plumber-gas fitter, two years of experience) or must work as an apprentice under direct supervision — at most two per journeyman on commercial work and three on residential. Journeymen complete 16 CE hours, 8 on code, per three-year period. The 2024 New Mexico Plumbing Code took effect August 1, 2026, with permits allowed under either code until January 1, 2027.
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
CID licenses contractors statewide under the Construction Industries Licensing Act; the license is the trade credential everywhere in New Mexico. Permits and inspections are issued by CID or, where a city or county runs its own building department, by that jurisdiction under codes adopted pursuant to NMSA § 60-13-44. A municipality may not require a licensed contractor to post an additional license bond (§ 60-13-51).
The local offices section below names the exact permit desk for every New Mexico county on file.
Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.
Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
The $7,200 handyman exemption expressly excludes plumbing and gas fitting (NMSA § 60-13-3(D)(14)).
CID's 2026 amendments fold natural gas fitting into MM-1 and MM-3; the adopted 14.6.4 NMAC lets JG and JPF journeymen work under MM-1. LP gas systems still need an LP gas license.
CID allows homeowners to do their own plumbing after submitting an isometric drawing for plan review ($25 review fee, per CID FAQ).
A practical sequence for a new plumbing contractor in New Mexico. Actual agency processing times are noted in the ledger above.
Each item names the issuing authority, cycle, and citation.
Statutory consequences with their citations — not estimates, not “commonly cited” guesses.
Acting as a contractor without the license the CILA requires is a misdemeanor prosecuted in magistrate or metropolitan court; a second conviction doubles the penalty, and CID says a violator becomes eligible for licensure one year after conviction.
A contractor may not sue to collect compensation for licensed work without alleging and proving it was licensed when the claim arose, and an unlicensed contractor has no right to file a mechanic's lien.
Acting as a journeyman without a valid certificate of competence is a separate misdemeanor; a repeat conviction doubles it.
Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.
Every fact in this file was checked against these official sources on October 2026.
Pending verification: Final adopted text of the 2026 amendments to 14.6.6 NMAC — the State Records Center page still shows the March 10, 2022 version, while the adopted 14.6.4 NMAC (eff. Aug. 1, 2026) already treats MM-1 and MM-3 as the only single-trade mechanical licenses · License application fee: CID's licensing page lists a $36 application fee paid to PSI, while 14.5.5.8 NMAC as posted by the State Records Center still lists $30; license-fee amounts here ($100 or $200 per two-year term) come from 14.5.5.8 NMAC and may have been changed by a later rule not retrieved · PSI trade and Business & Law exam fees (published only in PSI Candidate Information Bulletins, not on an official state page) · Journeyman certificate fee: CID's fee page lists $75 for all journeyman certificates while 14.5.5.9 NMAC lists a $25 exam fee and $25-per-year renewal; the CID figure is used here · The renewal term and expiration date CID currently assigns (NMSA § 60-13-18(B) allows up to two years with staggered expirations; the current CID/PSI schedule was not retrieved)
General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.
Store licenses, permits, policies, and renewal dates in one place.