How to Transfer Your Plumber License to Colorado (2026)

The Colorado State Plumbing Board and Endorsement Basics

In Colorado, all plumbing licensing is regulated at the state level by the Colorado State Plumbing Board, operating within the Department of Regulatory Agencies (DORA) Division of Professions and Occupations. You cannot legally perform plumbing work as a journeyman anywhere in the state without holding a valid credential issued directly by DORA. Local cities, counties, and municipalities cannot issue trade licenses that bypass state authority, though cities like Denver or Colorado Springs do require local contractor registration for business entities pulling permits.

If you hold an active journeyman plumber license from another state, you do not need to restart your career as an apprentice. Colorado provides two distinct pathways to transfer your trade status: direct reciprocity or licensure by endorsement. The board reviews your out-of-state credentials to determine whether your original state's licensing requirements, verified work hours, and examination standards match Colorado's statutory guidelines.

To qualify for a Colorado Journeyman Plumber license, state law requires proof of at least 6,800 hours of practical experience in the plumbing trade, earned over a minimum of four years (48 months). If your current state required a comparable hour threshold and a written examination on standard plumbing codes, DORA can grant you a Colorado journeyman credential through endorsement without making you repeat years of field experience.

Reciprocity vs. Endorsement: Do You Have to Re-Test?

Navigating the difference between direct reciprocity and license endorsement will help you plan your timeline and avoid unnecessary examination fees.

• National Reciprocity Agreements: Colorado currently maintains formal reciprocal licensing agreements with specific states, including Idaho, Montana, North Dakota, South Dakota, and Wyoming. If you earned your journeyman license in one of these states by passing their state examination and your license remains active and in good standing, you can obtain a Colorado license through a streamlined reciprocity application. You generally will not have to take the Colorado written exam.
• Licensure by Endorsement: If your current license comes from a state without a formal reciprocity agreement with Colorado, you must apply through endorsement. The Colorado State Plumbing Board will review your home state's licensing laws, the scope of your state examination, and your documented work history. If your home state's exam covered standard international code practices and you meet the 6,800-hour requirement, DORA often waives the written testing requirement.
• Taking the Colorado Journeyman Exam: If your state did not require a written examination, or if DORA determines your home state's exam was not equivalent to Colorado's standards, you will be required to take and pass the Colorado Journeyman Plumber exam. Administered by PSI Testing Services, this open-book examination tests your knowledge of the International Plumbing Code (IPC), board rules, and state specific safety regulations.

Step-by-Step Application Process and Documentation

To ensure a smooth transition, you should start gathering your documentation several weeks before your intended move date. DORA requires specific forms completed directly by your home state board and former employers.

• Create a DORA Account: All applications must be submitted digitally through the DORA Division of Professions and Occupations online portal. Register using your legal name exactly as it appears on your government identification.
• Request Verification of Licensure: Contact your current state plumbing board and request an official License Verification form sent directly to DORA. This document must confirm that your license is active, in good standing, free of disciplinary action, and obtained by written examination.
• Submit Affidavits of Practical Experience: You must provide formal proof of your 6,800 hours of practical trade experience. DORA requires signed Affidavits of Experience from licensed master plumbers, plumbing contractors, or official employer representatives who directly supervised your work. Each affidavit must clearly detail your start and end dates, total hours worked, and specific job duties performed.
• Verify Code Competency: Colorado relies heavily on the International Plumbing Code (IPC) with state specific amendments. Be ready to document that your past practical work and educational training correspond with IPC standards.
• Provide Identification and Legal Presence: Upload a clear copy of your valid US driver's license or state issued photo ID, along with the required state affidavit confirming your legal presence in the United States.

Expected Fees and Processing Timeline

Moving across state lines involves costs, so establishing a realistic budget for license fees and processing wait times prevents unexpected financial stress.

• Application and License Fees: The initial application and endorsement fee for a Colorado Journeyman Plumber license generally ranges from $100 to $200. Fee schedules can adjust, so always confirm exact figures on the official DORA website before submitting your payment.
• Out-of-State Board Verification Fees: Your current state board will usually charge a processing fee ranging between $15 and $50 to send an official license verification directly to Colorado.
• Examination Fees (If Required): If DORA requires you to sit for the PSI examination, expect an additional testing fee ranging between $75 and $120, paid directly to PSI Testing Services.
• Application Processing Time: A complete application with all verifications and experience affidavits attached typically takes 4 to 8 weeks to process through DORA. Missing signatures, unverified hours, or delayed responses from your home state board can extend this timeline significantly. Always check current processing times on the DORA portal prior to locking in your relocation schedule.

What People Get Wrong About Moving a Plumbing License to Colorado

Avoid these frequent pitfalls made by out-of-state journeymen moving to Colorado:

• Working before state approval: You cannot perform journeyman level plumbing work in Colorado on an out-of-state license while your DORA application is under review. Working without an active Colorado journeyman license or apprentice registration is illegal and can lead to fines or license denial.
• Confusing local municipal registrations with state licenses: Cities like Denver, Aurora, and Colorado Springs require plumbing contractors to register locally before pulling permits. However, these local registrations are not trade licenses. You must hold a state-issued DORA journeyman or master license first.
• Expecting union card reciprocity: Holding a journeyman card from a UA union local does not automatically grant you a state license. DORA is a state government regulatory agency and only recognizes state-issued licenses and verified state examinations.
• Submitting tax documents instead of experience affidavits: DORA will reject W-2 forms or pay stubs as primary proof of experience. You must submit official Affidavits of Experience signed by licensed master plumbers or licensed contractors.
• Assuming code uniformity: If you were licensed in a state using the Uniform Plumbing Code (UPC), be aware that Colorado uses the International Plumbing Code (IPC). Pay close attention to differences in drainage pipe sizing, venting configurations, and approved piping materials.

Taxes, Cost of Living, and Working Conditions in Colorado

Relocating for work means evaluating local economic conditions alongside licensing rules. Colorado maintains a strong job market for skilled tradespeople, driven by ongoing residential, commercial, and infrastructure growth throughout the Denver metro area, Fort Collins, and the Western Slope.

When calculating your take-home pay, note that Colorado levies a Flat 4.4% state income tax on all taxable income. This straightforward flat rate simplifies your tax planning compared to states with multi-tiered progressive income tax structures.

Keep in mind that there are no programs that pay people to move on a statewide level in Colorado. All relocation expenses are your responsibility unless you negotiate a relocation allowance or sign-on package directly with a hiring contractor. Many top plumbing companies in high-demand metro areas actively seek experienced out-of-state journeymen and may provide assistance for qualified candidates.

Working in Colorado also introduces high-altitude and cold-weather plumbing considerations. You will encounter local freeze protection codes, deeper frost line requirements for underground service lines, and specific insulation rules that differ markedly from warmer regions.

Next Steps for Your Colorado Plumbing Career

Once you decide to move, request your state verification forms and contact former supervisors immediately so your application can move through DORA without delay.

Check the Colorado page on Workmerica for access to the registry, the tax table and the live openings. Creating a free profile puts you directly in front of Colorado employers hiring from out of state.