License Requirements in Colorado
Browse all 79 trade and professional licenses in Colorado (CO). 55 require a state-level license.
Last updated 2026-05-08
By the numbers: 55 of 79 trades require a state-level license from a Colorado Department, Board, or licensing Authority. Renewal periods, Continuing Education Hours, and Application Fees vary by trade — see each trade page for the specifics.
| Trade | License Required | Median Salary |
|---|
| 🚨Alarm Installer |
Required |
$52,779 |
| 📏Architect |
Required |
$100,774 |
| ⚠️Asbestos Abatement Worker |
Required |
$51,915 |
| 🔨Auctioneer |
Not Required |
$38,696 |
| 🔗Bail Bondsman |
Required |
$45,727 |
| 💈Barber |
Required |
$38,120 |
| ♨️Boiler Operator |
Required |
$67,176 |
| 🚛CDL Driver |
Required |
$55,230 |
| 📊CPA |
Required |
$82,340 |
| 🏠Chimney Sweep |
Not Required |
$46,094 |
| ✈️Commercial Pilot |
Required |
$145,400 |
| ✂️Cosmetologist |
Required |
$36,780 |
| ⚖️Court Reporter |
Not Required |
$68,644 |
| 🏗️Crane Operator |
Not Required |
$65,134 |
| 💥Demolition Contractor |
Not Required |
$67,392 |
| 🦷Dental Hygienist |
Required |
$88,120 |
| 🚰Drinking Water Operator |
Required |
$57,693 |
| 🚑EMT / Paramedic |
Required |
$44,161 |
| ⚡Electrician |
Required |
$62,140 |
| 🛗Elevator Mechanic |
Required |
$110,613 |
| 🌍Environmental Scientist |
Not Required |
$85,298 |
| 🧴Esthetician |
Required |
$41,925 |
| 🧯Fire Sprinkler Fitter |
Required |
$68,968 |
| ⚱️Funeral Director |
Not Required |
$70,718 |
| 🏗️General Contractor |
Not Required |
$78,900 |
| 🪨Geologist |
Not Required |
$91,389 |
| 🪟Glazier |
Not Required |
$52,196 |
| ❄️HVAC Technician |
Required |
$56,780 |
| 👂Hearing Aid Specialist |
Required |
$63,363 |
| 🔍Home Inspector |
Required |
$64,890 |
| 🧱Insulation Worker |
Not Required |
$53,082 |
| 📋Insurance Agent |
Required |
$62,890 |
| 🗣️Interpreter |
Required |
$61,657 |
| 🗺️Land Surveyor |
Required |
$74,055 |
| 🌿Landscape Contractor |
Not Required |
$60,285 |
| 🛡️Lead Abatement Worker |
Required |
$49,906 |
| 💉Licensed Practical Nurse |
Required |
$64,508 |
| 🔐Locksmith |
Not Required |
$49,150 |
| 💆Massage Therapist |
Required |
$53,848 |
| 🦠Mold Remediation |
Not Required |
$50,230 |
| 🏦Mortgage Loan Originator |
Required |
$73,936 |
| 💅Nail Technician |
Required |
$36,612 |
| 📜Notary Public |
Required |
— |
| 👓Optician |
Not Required |
$47,790 |
| 🐛Pest Control Operator |
Required |
$42,890 |
| 🧪Pesticide Applicator |
Required |
$43,372 |
| 💊Pharmacy Technician |
Required |
$43,524 |
| 🏃Physical Therapy Assistant |
Required |
$69,206 |
| 🔩Pipefitter |
Required |
$68,212 |
| 🔧Plumber |
Required |
$62,890 |
| 📊Polygraph Examiner |
Not Required |
$73,569 |
| 🏊Pool Contractor |
Not Required |
$63,007 |
| 🕵️Private Investigator |
Required |
$63,882 |
| 📨Process Server |
Not Required |
$41,763 |
| ⚙️Professional Engineer |
Required |
$108,691 |
| 📡Radiologic Technologist |
Required |
$79,282 |
| ☢️Radon Mitigation |
Required |
$54,129 |
| 🏠Real Estate Agent |
Required |
$56,780 |
| 📐Real Estate Appraiser |
Required |
$66,247 |
| 🩺Registered Nurse |
Required |
$82,890 |
| 🫁Respiratory Therapist |
Not Required |
$84,196 |
| 🏘️Roofing Contractor |
Not Required |
$50,120 |
| 🚌School Bus Driver |
Required |
$43,988 |
| 🎓School Counselor |
Required |
$66,646 |
| 🛡️Security Guard |
Required |
$38,426 |
| 🚽Septic System Installer |
Required |
$52,833 |
| 🔨Sheet Metal Worker |
Required |
$63,633 |
| 🔎Skip Tracer |
Not Required |
$45,964 |
| 🤝Social Worker |
Required |
$63,050 |
| ☀️Solar Installer |
Required |
$51,483 |
| 💪Substance Abuse Counselor |
Required |
$58,006 |
| 🎨Tattoo Artist |
Not Required |
$46,202 |
| 📚Teacher |
Required |
$71,708 |
| 🚗Tow Truck Operator |
Not Required |
$41,493 |
| 🐾Veterinary Technician |
Required |
$47,239 |
| 🏭Wastewater Operator |
Required |
$57,693 |
| 🚰Water Treatment Operator |
Required |
$57,693 |
| 🔥Welder |
Not Required |
$50,120 |
| 💧Well Driller |
Required |
$56,635 |
Common questions about Colorado licensing
Which trades require a state-level license in Colorado?
55 of the 79 trades on this page require a Colorado state license. The remainder are licensed at the local/county level or not at all.
Who issues professional licenses in Colorado?
Most occupational licenses in Colorado are issued by the relevant state Department or licensing Board listed on each individual trade page. Renewal periods are typically 1–3 years and most boards require Continuing Education Hours between renewals.
Can I transfer my license from another state to Colorado?
Reciprocity varies by trade. Colorado accepts some out-of-state licenses by endorsement after Experience and Exam verification — check the trade-specific page for the exact policy.
Data last verified 2026. Salary data from BLS OEWS. Always verify with the relevant Colorado licensing board.