Plumbing Contractor License in Nevada: Requirements, Qualifier, Bond and Exams

Statewide.

Plumbing contractors are licensed by the Nevada State Contractors Board under classification C-1 Plumbing and Heating (NAC 624.190), and the Board's license requirement applies everywhere in Nevada.

Two boundaries matter.

Counties and incorporated cities may still require an additional local contractor license on top of the NSCB license (NRS 624.035).

And the NSCB license is the business's credential, not the workers': Nevada issues no state journeyman or master plumber license, and the worker cards Clark County and Reno require run through the Nevada Board of Plumbing Examiners — a separate layer our Nevada plumber license page covers.

Customers can also look up contractor licenses on the Board's website, nvcontractorsboard.com; we could not verify the exact search URL in our research, so start from the Board's homepage.

The Nevada State Contractors Board (NSCB) issues the license.

Plumbing work sits in classification C-1 Plumbing and Heating, whose plumbing-only subclassification is C-1d.

Classification C-1 has eleven subclassifications: C-1a Boilers, C-1b Fire sprinklers, C-1c Insulation of pipes and ducts, C-1d Plumbing, C-1e Sheet metal, C-1f Heating/cooling/circulating air, C-1g Pipes and vents for gas, C-1h Water heaters, C-1i Chilled-water piping, C-1j Firefighter breathing-air systems and C-1k Industrial piping.

The C-1d scope reaches hydronic heating systems up to 200,000 BTU, landscape irrigation, water heating including solar, gas supply, medical gas piping, and water and gas piping from the building edge to the utility meter.

Medical gas piping is named inside the subclassification itself; our research found no separate state medical-gas license for workers in NRS/NAC 624, but we could not verify that absence — confirm with the NSCB before you bid medical gas work.

Every Nevada contractor license must name a qualifying individual, and that person needs at least 4 full years of experience as a journeyman, supervising employee or contractor in the specific classification within the 15 years before applying.

Up to 3 of those 4 years can be replaced by training from an accredited college or university, or another Board-accepted program such as an apprenticeship certificate.

There is no state master plumber license for the qualifier to hold: the 4 years are proven to the NSCB.

One person can qualify more than one Nevada license only where the same licensee owns at least 25% of each entity, or the qualifier owns at least 25% of each; a sole-proprietor qualifier may qualify one additional license without the ownership test.

The qualifier passes two exams, both administered by PSI: a Business and Law (CMS) exam and the trade exam for the classification you apply for.

The Nevada Business and Law (CMS) exam is open book (Construction Business and Law Manual for Nevada).

Trade exams are closed book except for certain code references listed in the content outline.

You get three attempts per exam and must wait 2 weeks between attempts; after a third failure the application is void, and you can reapply after 30 days.

PSI's bulletin for the classification is the place to confirm the exact exam and its content outline.

The Board sets your bond at license approval somewhere between $1,000 and $500,000 based on the license type, monetary limit, financial responsibility, experience and character of the applicant — there is no fixed bond amount for plumbing contractors.

Every applicant also files a financial statement (a CPA-prepared statement is required above $25,000), and the license carries a monetary limit: the maximum contract you may undertake on a single site for a single client.

On insurance, all Nevada contractors must show proof of industrial insurance (workers' compensation) to be licensed or renewed, unless exempt with a signed affidavit; the NSCB pages we read state no general-liability minimum.

As of September 29, 2026, the NSCB application fee is $300 and the biennial license fee is $600.

Residential contractors also pay a Residential Recovery Fund assessment — $200 for monetary limits up to $1,000,000.

A license is issued for two years and renewed every two years, and PSI exam fees are separate, listed in PSI's bulletins.

Our research found no continuing-education requirement for Nevada contractor license renewal in NRS 624, NAC 624 or the Board's pages — that is an absence in our research, not a rule, so confirm the current renewal requirements with the NSCB.

For an out-of-state licensee, Nevada's route in is licensure by endorsement.

A qualifier who has been actively licensed for 4 years in an equivalent classification in another state, with no discipline, can have the Nevada trade exam and the experience certification waived — but still passes the Nevada Business and Law exam.

On the Board's State Equivalency Chart, Nevada C-1 is matched to Arizona CR-77 and California C-36 plus C-4, with those states' exams listed as equivalent given 4 years of active licensure; Florida CF Plumbing Contractor holders still take the Nevada trade exam.

Check your state's row on the Board's live chart before you rely on a match.

One trap: Nevada's NASCLA exam waiver applies only to general building classifications — it does not waive the C-1 or C-21 trade exam.

Nevada gives you two clocks, and both are short.

When the qualifier's association or employment ends, the licensee must notify the Board in writing within 10 days and replace the qualifier within 30 days; miss those windows and the license can be suspended or revoked.

That makes the qualifier a single point of failure worth managing: know the 10-day clock, and line up a replacement who meets the 4-year classification experience rule before your current qualifier gives notice.

Nevada's small-job exemption does not help a plumbing business.

The state's under-$1,000 exemption for repair and maintenance work does not cover work of a type performed by a plumbing contractor, so plumbing work needs a licensed contractor regardless of job size.

What scales instead is your monetary limit: each license carries one, and it caps the maximum contract you may undertake on a single site for a single client.

Work above your limit is outside what the license permits.