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Office of Economic Development and International Trade

Business Licensing Database
CONSTRUCTION CONTRACTOR

ABRASIVE BLAST CLEANING AIR DUCT CLEANING ASPHALT PLANT BRICKLAYER
BUILDER BUILDING CODE BUILDING PERMIT CARPET INSTALLER
CEMENT WORK CONSTRUCTION CONTRACTOR DRYWALLER
ELECTRICIAN FLOORING INSTALLER FRAMER GENERAL CONTRACTOR
PIPE FITTER PLUMBER ROOFER ROOFING
SUBCONTRACTOR

State

Colorado Division of Registrations
State Plumbing Board
1560 Broadway suite 1350
Denver , CO   80203
(303)892-2984
Fax: (303)894-2310
Electricians and plumbers must obtain a state license to work in Colorado. Electrical and plumbing apprentices, and electrical contractors, are required to register with the Board.

State

Colorado Division of Registrations
State Electrical Board
1560 Broadway suite 1500
DENVER , CO   80202
(303)894-2984
Fax: (303)894-2310
In addition, many cities require electricians and plumbers to register on the local level also before doing work in those cities.

State

Colorado Department of Revenue
1375 Sherman St
Denver , CO   80261
(303)238-7378
SALES TAX? Contractors are considered to be the consumer of the materials used in their work and so should not obtain a Colorado Sales Tax License. Sales or use tax must be paid on all purchases of building supplies, tools and other goods used in your contracting business.
See FYI Sales #18, Contractors.

Link:  http://www.revenue.state.co.us/fyi/html/sales18.html
Supplies may be exempted from local sales tax, if the contractor presents the building permit to show that the appropriate local taxes have been or will be collected by the building department.
If you contract with a tax-exempt organization (including government agencies) your purchases of building supplies for that contract will not be sales taxable. You must obtain an Exemption Certificate for each tax-exempt project from the Department of Revenue.
If you are a contractor who also purchases building supplies specifically for resale and not for your own use in your contracting work, you must obtain a Colorado Sales Tax License and collect and report sales tax on those retail sales. You may also need a city sales tax license for the city in which your retail business is located.
See FYI Sales #6, Contractors and Retailer-Contractors.

Link:  http://www.revenue.state.co.us/fyi/html/sales06.html

State

Colorado Department of Public Health & Environment
Air Pollution Control Division
4300 Cherry Creek Drive South
Denver , CO   80246-1530
(303)692-3100
Fax: (303)782-0278
If starting an asphalt facility, please refer to the fact sheet on "Hot Mix Asphalt Pollution Prevention and Regulatory Requirements"

Link:  http://www.cdphe.state.co.us/el/cross_media/asphalt/p2regreq.asp
If doing Sandblasting, see the Division's Guidance Document on Abrasive Blast Cleaning.

Link:  http://www.cdphe.state.co.us/ap/down/sndblstguide.PDF

Federal

U.S. Occupational Safety & Health Administration (OSHA)
1391 Speer Boulevard, Suite 210
Denver , CO   80204
(303)844-5285
(800)755-7090
Fax: (303)844-6676
OSHA's Directorate of Construction provides workplace safety standards and regulations to ensure safe working conditions for the nation's construction industry. OSHA has numerous reference materials on their web site relating to safety equipment, standards, and training, for residential construction and a variety of construction specialties.

Link:  http://www.osha.gov/doc/

Local
Local Licensing Authorities
To determine whether you will need a license, you must contact the building department in EACH city in which you will have a job. The types of contracting licenses and the requirements for licensure vary a great deal from city to city. Requirements may include an application and license fee, references, proof of experience, examination, bonding, or proof of liability insurance.
If the construction job is in an unincorporated area of a county, you must call the county building department or the county clerk to determine if there are any requirements. The requirements may include building permits, local codes or building inspections.
If doing construction involving streets, water, or sewer lines, contact the local public works department.
NOTE:  The only construction trades licensed by the state are electricians and plumbers. General contractors and all other subcontractors are not licensed by the state or federal government; HOWEVER, many of the cities and towns in Colorado do issue contractor's (and subcontractor's) licenses.
NOTE:  If applicable, see ELECTRICIAN
and PLUMBER for information on state-issued permits and inspection in 25 counties not covered by local electrical and plumbing inispectors.
NOTE:  For design and inspection requirements related to construction of health care facilities, see HEALTH FACILITY .

page last updated 12/4/03

The Colorado Revised Statutes are available on line at http://198.187.128.12/colorado/lpext.dll?f=templates&fn=fs-main.htm&2.0. You can locate a statute of interest by searching either on the citation given in the database (e.g., 18-5-307) or on a keyword or phrase.

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