Colorado Carpentry License Requirements (2026)

Colorado does not issue any statewide contractor or carpentry license. Carpentry is regulated entirely at the municipal level. Denver requires a Class B, C or D Building Contractor license through Denver Community Planning and Development based on building height and occupancy. Colorado Springs Pikes Peak Regional Building Department licenses Class C-1 / C-2 carpentry contractors. Aurora, Boulder and most front-range cities run their own contractor registration with separate experience and exam requirements. Carpenters must register with each jurisdiction where they pull permits.

Federal requirement: EPA Lead RRP Rule

Whether or not Colorado licenses this trade, any work that disturbs paint in pre-1978 housing falls under the federal EPA Lead RRP Rule nationwide. See our complete EPA RRP Lead Certification guide for who needs firm and renovator certification, what it costs, and how renewal works.

The Licensing Authority

Licensing for this trade is governed by City and County of Denver — Department of Community Planning and Development, Building Division (Denver DSD) (DSD), the agency that issues and regulates the credential under Denver Revised Municipal Code Chapter 10 (Building Code); Denver Building and Fire Code. Denver DSD licenses building contractors (Class A, B, C, and D) inside the City and County of Denver, issues permits, performs inspections, and enforces the Denver Building and Fire Code. Colorado does not issue a state general contractor license; municipal authority is the only path.

Official portal: https://www.denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Building
Address: 201 W Colfax Avenue, Department 205, Denver, CO 80202
Phone: (720) 865-2705

Baseline Eligibility

Eligibility begins with two baseline checks: the applicant must be 18 or older and must provide a valid Social Security Number. No Colorado residency requirement.

Good moral character

Criminal history is reviewed case-by-case by the licensing authority.

Background investigation

Criminal history disclosure required on the application.

Experience and Education Requirements

A minimum of 2 years of Two to five years of verifiable carpentry experience depending on the city. Denver Class C requires two years; Class B requires three; Class A general building requires five. must be documented and verified. Unless the board publishes a different lookback period, applicants should keep payroll, tax, project, or supervisor records that support the claimed experience.

Accepted proof of experience or eligibility

Notarized experience affidavits from licensed supervising contractors
W-2s, 1099s, or payroll records covering the qualifying period
Apprenticeship completion certificate where applicable

Education substitution

Approved carpentry apprenticeship or accredited trade school coursework may substitute for part of the experience requirement.

The Licensing Examination

Testing is handled by ICC Contractor/Trades Examination administered by Pearson VUE for most front-range jurisdictions. The applicant has to pass each part listed here before the credential is granted:

ICC Carpentry / Building examination — 80 questions, 240 minutes, passing score 75%
Local business and law module — 50 questions, 120 minutes, passing score 70%

Examination fee: $110 ICC exam fee plus the municipal application fee.

Retake policy: Failed parts may be retaken after paying a new exam fee. Applications remain valid for one year.

Financial Security and Insurance

The applicant must secure and file a $15,000 surety bond before the DSD will release the license.

General liability

Most Colorado cities require minimum $1,000,000 per occurrence / $2,000,000 aggregate general liability before issuing a contractor registration.

Workers' compensation

Workers compensation is mandatory under C.R.S. §8-40-201 for any contractor with one or more employees.

Additional financial requirements

No financial statement is required at the state level; some Denver classes require evidence of working capital.

Fee Schedule

Fee	Amount
Application (non-refundable)	$350
Examination	$110
Initial license	$350
Renewal (every 2 years)	$350

License Renewal

The Colorado Carpentry (no statewide license; municipal contractor registration) must be renewed every 2 years. The fee to renew is presently $350. Biennial renewal in most jurisdictions. Each city has its own due date.

Continuing education: Most Colorado cities require continuing education through the ICC Preferred Provider program (typically 6 hours per cycle).

Downloadable Asset

2026 Colorado Carpentry License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Reciprocity Map

Colorado grants no NASCLA reciprocity for this classification.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

Colorado has no statewide carpentry license, so no formal reciprocity exists. Front-range cities sometimes accept ICC-certified contractor exam results from neighboring jurisdictions.

Weighing more than one jurisdiction? The national hub compares Carpentry license requirements in every state — exam, bond, fee, and experience thresholds side by side.

The Licensing Roadmap

Identify the cities where you will work. Each Colorado jurisdiction has its own carpentry contractor registration.
Document two to five years of carpentry experience. Per the city class you are pursuing.
Pass the ICC Carpentry contractor examination. Schedule with Pearson VUE for the appropriate ICC carpentry/building exam.
Pass the local business and law module. Most cities require a separate local rules exam.
Submit the municipal application with fee and bond. Typical Denver fee is $350 with $15,000 surety bond.
File GL insurance and workers compensation certificates. Required for any city registration.
Receive the city contractor registration card. Issued within four to six weeks.
Renew every two years. Submit renewal fee and current insurance to each city.

Common Application Pitfalls

The errors below are the ones that most frequently cost Colorado Carpentry applicants time, drawn from the cited board guidance.

Assuming a state license exists

Out-of-state contractors are routinely caught working in Denver without a Class B/C/D registration. Colorado has no statewide fallback license.

Missing the local supervisor certificate

Denver and Boulder require a designated supervisor who has passed the ICC carpentry exam to be on file before any permits issue.

Lead RRP for pre-1978 trim

EPA RRP certification is federally required for any carpentry that disturbs painted surfaces in pre-1978 housing.

Workers compensation gaps

Even one helper triggers C.R.S. §8-40-202 workers comp coverage. Denver requires the certificate before issuing the license.

Failing ICC exam open-book rules

The ICC carpentry exam is open-book but only specific code editions are allowed. Bringing the wrong edition disqualifies the attempt.

Before Filing: A Checklist

Before submitting to DSD, the applicant should have each of the following ready:

☐ Municipal application with fee
☐ Two to five years of carpentry experience documentation
☐ ICC Carpentry exam pass certificate
☐ Local business and law exam pass certificate
☐ $15,000 (typical) surety bond
☐ Certificate of $1M/$2M general liability insurance
☐ Workers compensation certificate (if employees)
☐ Designated supervisor on file with the city

Preparation Resources

The following references are cited by the regulator, used in the application process, or commonly used to prepare for the trade scope. Listed for reader convenience; CLR receives no compensation for these recommendations.

ICC Carpentry Contractor Examination Reference List — International Code Council. Lists allowed open-book references.
International Residential Code (Colorado-adopted edition) — International Code Council. Primary technical reference.
Denver Building and Fire Code — City and County of Denver. Local amendments to the IRC and IBC.

Other Colorado Trade Licenses

CLR maintains guides for additional Colorado trades; the published ones are listed here:

Answers to Common Questions

Does Colorado issue a state carpentry license?

No. All carpentry licensing is municipal. Denver, Colorado Springs, Aurora, Boulder and other cities each run their own contractor registration.

Which Denver class do carpenters need?

Denver Class C covers small buildings up to two stories or 6,000 sq ft. Class B covers up to four stories. Class A is unlimited general building.

What insurance do front-range cities require?

Most require $1,000,000/$2,000,000 commercial general liability and workers compensation for any employees.

Is there reciprocity between Colorado cities?

Limited. Denver and Aurora sometimes accept each other ICC exam results, but each city still requires its own application and bond.

How often do Colorado contractor registrations renew?

Most renew every two years on the anniversary of issuance.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-05-18 · Next scheduled review 2026-08-16