New Mexico certifies gas fitters individually under the Construction Industries Licensing Act: the JG certificate — in the rules, the journeyman natural gas fitter — is issued by the Construction Industries Division under 14.6.6.11D NMAC, works under an MM-2 or MM-98 license, and stands behind a two-year experience gate and an examination passed at 75% or higher. The PassProfessor New Mexico JG Journeyman Gas Fitter program prepares candidates for that certificate, on the certificate’s own terms.
This program is part of the expanding PassProfessor catalog — join the notify list and we’ll email you when enrollment opens.
A fuel-gas certificate, in the certificate’s own name
Start with the name, because in New Mexico the name is the discipline. The certificate this page covers is the JG — journeyman natural gas fitter. It is not a general fuel credential, and this program describes it only as natural gas fitting work performed under the licenses named below. That precision matters in a trade where a short label invites a wide reading: candidates should hold the certificate to the words the rules use for it, and should be wary of any preparation material that silently stretches those words into a broader promise.
The JG is a certificate for an individual journeyman, issued by the Construction Industries Division (CID) of the Regulation and Licensing Department under the Construction Industries Licensing Act (CILA), NMSA 1978, Chapter 60, Article 13. The journeyman certificates sit at 14.6.6.11D NMAC, and the certification rules sit at 14.6.4.8 NMAC. That is a different kind of instrument from a contractor license. New Mexico licenses contracting through businesses, held through a qualifying party who has passed the contractor examinations for a classification. The JG certifies a person — verified experience and a passed examination — to do natural gas fitting work under a contractor license. It does not, by itself, authorise its holder to contract with the public.
The companion New Mexico JG Journeyman Gas Fitter Exam Guide works through the gate arithmetic, the published examination rules, the fee layer, and the renewal discipline in full depth.
The examination at a glance
| Item | Verified position |
|---|---|
| Program | New Mexico JG Journeyman Gas Fitter — the JG journeyman certificate examination layer |
| Regulator | Construction Industries Division (CID), Regulation and Licensing Department, under the CILA and NMAC Title 14, Chapter 6 |
| Certificate | JG — journeyman natural gas fitter, an individual journeyman certificate under 14.6.6.11D NMAC |
| Passing standard | A passing score is 75% or higher — 14.6.4.8C(2) NMAC |
| Experience gate | Two years (4,000 hours) of experience, all within the last 10 years; approved training credited at half rate, capped at half the requirement |
| Supervision | Works under an MM-2 or MM-98 license |
| Examination fee | $25 — the CID rule fee for a mechanical journeyman examination, 14.5.5.9B NMAC |
| Term and renewal | Three-year term; renewal $25 per year per classification held; 16 hours of continuing education, at least 8 on the current CID code |
| Retakes | The same examination not more than twice within a 30-day period |
| Administrator note | PassProfessor is independent and is not affiliated with the Construction Industries Division |
Where the JG sits: under MM-2 or MM-98
A JG holder works under an MM-2 or MM-98 license. That single line, stated in the certificate framework, does most of the structural work on this page. MM-2 is the natural gas fitting contractor classification — the license of the business under which JG work is contracted and performed. MM-98 is the broad mechanical classification, indicating licensure across the MM classifications. In either case, the contracting act belongs to the licensed business and its qualifying party; the JG holder is the certified journeyman inside that frame.
Below the journeyman rung, the ladder leans on it: an apprentice may perform mechanical work only under the direct supervision of a validly certified journeyman employed by a validly licensed person or the holder of a valid annual permit. So the JG holder stands in the middle of the structure in both directions — supervised by the license above, and, when apprentices are placed under the holder, the direct supervisor below. Within the classification system, licenses and certificates carry letter-number symbols, with the field letter M covering the mechanical and plumbing classifications, and work outside the scope of one’s classification violates the CILA. For a gas fitter, that classification discipline is not abstract: gas work is unforgiving of improvisation, and the rules build the same habit — stay inside the classification, inside the supervision frame, and inside the code.
Neighbouring certificates mark the family’s width without belonging to this program. The combined JPG plumber and gas fitter certificate is a different certificate from the JG, never merged with it here. The JR journeyman refrigeration and the JSM journeyman sheet metal are likewise separate certificates with their own supervision lines.
The gate: two years, 4,000 hours, inside ten years
Journeyman certification requires two years of experience — 4,000 hours — and all of it within the last 10 years. The recency window is part of the requirement, not a detail around it: experience older than ten years does not count toward the gate, however substantial it was when it was earned. A fitter returning to certification after years in adjacent work should measure the window first, because the window, not the career, is what the rule counts.
Approved training can stand in for part of the gate under a precise credit rule. Accredited technical training counts in lieu of work experience at one-half year of experience per year of training, and credited training may never exceed one-half of the total experience requirement. The consequence is worth stating plainly: training can shorten the worked road by at most half. At least half the gate is always worked experience, earned inside the ten-year window. Candidates who plan around a course of study should document both the training and its approval carefully, and should do so before the application clock below starts running.
That clock is short. All certification requirements must be met within six months of CID’s — or its designee’s — receipt of the application, or the application expires and all fees paid are forfeited. The sensible sequence is record first, application second: assemble the evidence and the examination plan, then start the clock.
The examination: what the rules publish, and what they do not
Examinations for journeyman certification are administered by CID or its designee. The pass standard is stated in the certification rule in its own words: a passing score is 75% or higher — 14.6.4.8C(2) NMAC. New Mexico’s journeyman standard is 75%, and a candidate arriving with a 70% figure remembered from another state’s examination should set it aside for this sitting. An applicant who fails may retake the same examination, but not more than twice within a 30-day period. The integrity rule in the same provision is severe: a CID determination of cheating voids the examination, forfeits all fees, automatically voids any certificate issued on that examination, and bars the applicant from any CID examination for one year.
What is not published is stated here just as plainly. No question count, no time limit in minutes, no reference list, no book policy, no content outline, and no pretest count for the JG examination appears in the primary sources behind this page, and none is printed here. The contractor examinations above this tier are different examinations for a different credential, with their own published mechanics; those mechanics belong to the contractor tier, are not this certificate’s, and no figure from them is used anywhere in this package. A source that fills the JG gap with borrowed contractor numbers is describing a sitting the JG candidate will not take.
Fees at the rule layer
The JG’s dollars are CID rule dollars, small and specific. The mechanical journeyman examination fee is $25, and the journeyman renewal fee is $25 per year per classification held — both at 14.5.5.9B NMAC. Renewal is priced per year per classification; the sources state no single lump-sum renewal figure for the three-year term, and none is printed here. These are the certificate’s own fees: the contractor tier carries its own, different fee instruments, none of which applies to the JG or appears in this package. The rule also records that CID may raise examination fees by a commission-approved multiplier of up to three; the $25 figure is the rule amount as published, noted with that authority and never blended into a different total.
The field code layer — and the tested layer’s honest boundary
New Mexico’s field mechanical code is stated in rule: the current 14.9.2 NMAC is the 2021 New Mexico Mechanical Code, adopting the 2021 Uniform Mechanical Code as amended by CID, effective March 10, 2022. That is the code layer under which a JG holder’s work is performed in the field, and this program grounds its preparation in it as field law.
The examination layer is kept separate with equal care. Because no JG reference list is published in the sources, this page claims no tested edition for the JG examination itself. The field code is stated as field code, and nothing here presents it as the examination’s keyed book. A draft rule proposing a later mechanical code exists at the Department but is not adopted, and it is not treated as field or examination code anywhere in this package.
Holding the certificate: term, continuing education, renewal
The JG certificate runs a three-year term, expiring the last day of the issue month. Renewal is earned, not merely paid: no journeyman certificate may be renewed without proof of continuing-education compliance. Before renewal or reinstatement the holder must complete a minimum of 16 hours of approved coursework, of which a minimum of 8 hours must cover the current CID code enforced for the classification being renewed. At least half of every cycle is therefore code education, tied to the code actually enforced for the JG classification — a design that keeps the working fitter current in the field layer described above rather than in a code the state no longer enforces. The renewal fee is the rule’s $25 per year per classification held. The boundary runs in the other direction as well: the contractor licenses above this tier carry no continuing-education requirement in their rules, so the 16 hours belong to this certificate tier and are not lent upward.
One pathway at the family’s edge is worth naming exactly as the rules state it. The JW welder certificate requires a JP, JG, JPG, JPF or JSM certificate together with ASME Section IX certification, and JW requires no separate test — so the JG is one of its qualifying certificates. The ASME requirement belongs to the welder credential itself, not to the JG examination.
What the PassProfessor program will cover
The certificate first, the craft inside its frame. Because the JG is defined by its name and its supervision line, the program is built in that order: what a journeyman natural gas fitter certificate is, under which licenses its holder works, and how classification discipline governs the work. The gas-fitting craft at journeyman depth follows inside that frame: piping and fittings, joining and testing practice, sizing and layout reasoning, and the safety habits that gas work demands on every job, grounded in the 2021 Uniform Mechanical Code as New Mexico’s field code. The New Mexico rule layer as its own subject: the two-year, 4,000-hour gate and its training-credit arithmetic, the ten-year window, the six-month application clock, the 75% standard, the retake cap, the cheating rule, the $25 rule fees, and the 16-hour, code-weighted renewal requirement. Every item is written from scratch against the rules; no item is drawn from another provider’s material, and nothing in the program borrows the contractor examinations’ mechanics for this certificate.
Independence, stated plainly. PassProfessor is an independent preparation provider, not affiliated with the Construction Industries Division or the Regulation and Licensing Department. Completing this program confers no certificate and no exemption; CID alone certifies, and candidates apply through CID and its designee. The full route is set out in the New Mexico JG Journeyman Gas Fitter Exam Guide.
Tell me when enrollment opens. The New Mexico JG Journeyman Gas Fitter program is in the works and enrollment is not yet open. Leave an email address and PassProfessor will write to you when the program is ready — and only about this program.
Frequently asked questions
What is the JG certificate?
JG is New Mexico’s journeyman natural gas fitter certificate — an individual journeyman certificate under 14.6.6.11D NMAC, issued by the Construction Industries Division. It is not a contractor license: contracting with the public runs through the contractor licenses held by businesses through qualifying parties.
Under whom does a JG holder work?
Under an MM-2 or MM-98 license. In the other direction, apprentices perform mechanical work only under the direct supervision of a validly certified journeyman employed by a validly licensed person or annual permit holder.
What score passes the JG examination?
A passing score is 75% or higher, as the certification rule states it at 14.6.4.8C(2) NMAC. New Mexico’s journeyman standard is 75%, not the 70% figure used in some other states.
How much experience does the JG require?
Two years — 4,000 hours — all within the last 10 years. Approved accredited training counts at one-half year of experience per year of training and can never supply more than half of the total requirement.
How many questions are on the JG examination, and how long does it run?
The primary sources behind this page publish no question count, time limit, reference list, book policy, or content outline for the JG examination, and this page prints none. Figures published for the contractor examinations belong to that different tier and do not describe this certificate’s examination.
What does the JG examination cost?
$25 — the CID rule fee for a mechanical journeyman examination at 14.5.5.9B NMAC. Renewal is $25 per year per classification held, also at the rule layer; the sources state no lump-sum renewal figure for the term.
How long does the certificate last, and what does renewal require?
A three-year term expiring the last day of the issue month. Renewal requires proof of continuing-education compliance: at least 16 hours of approved coursework, at least 8 of them covering the current CID code enforced for the classification being renewed. No certificate may be renewed without that proof.
What happens if I fail, or if an application stalls?
A failed applicant may retake the same examination not more than twice within a 30-day period. Separately, all certification requirements must be met within six months of the application’s receipt or the application expires and fees paid are forfeited.
Does the JG lead anywhere else in the certificate family?
The rules name the JG among the certificates that, together with ASME Section IX certification, qualify a holder for the JW welder certificate, which requires no separate test. The ASME requirement is the welder credential’s own, not part of the JG examination.
Is PassProfessor affiliated with CID?
No. PassProfessor is an independent preparation provider. The Construction Industries Division alone certifies journeymen and administers the certification process.
When does enrollment open?
The program is in the works and enrollment is not yet open. Leave an email address on this page and PassProfessor will write to you when the program is ready — and only about this program.