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License Definitions

Note: Some license codes have an "L" in them (meaning "Limited") and are not necessarily listed separately here. Any Board or Committee referred to in RBC111 may recommend, and the Board of Review shall have the authority to grant to any applicant, a special limited license, for the sole purpose of evaluating the training and experience of an applicant who has otherwise fulfilled all the Code requirements prerequisite to the granting of any contractor's license.

Building

Type Code Description
B-A RBC203.2 BUILDING CONTRACTOR A (GENERAL COMMERCIAL)
B-A-1 RBC203.2.1 BUILDING CONTRACTOR A-1 This license shall entitle the holder to contract for the construction, alteration and repair of any type or size of structure permitted by this Code.
B-A-2 RBC203.2.2 BUILDING CONTRACTOR A-2 This license shall entitle the holder to contract for the construction, alteration and repair of any type occupancy classification allowed by this Code, with the exception of Group A, E, and I occupancies exceeding thirty-thousand (30,000) square feet in total building floor area or any building that requires Type I construction.
B-B RBC203.3 BUILDING CONTRACTOR B (LIMITED COMMERCIAL)
B-B-1 RBC203.3.1 BUILDING CONTRACTOR B-1 This license shall entitle the holder to contract for the construction, alteration and repair of any type of occupancy classification allowed by this by this Code, with the exception of Group A, E, I or H occupancies or any building that requires Type I construction.
B-B-2 RBC203.3.2 BUILDING CONTRACTOR B-2 This license shall entitle the holder to contract for nonstructural remodeling in all occupancies, with the exception of Group A, E, I or H occupancies or any building that requires Type I construction. Further, this license shall entitle the holder to contract for any work authorized under a Building Contractor C license, the construction alteration and repair of any Group B, F, M or S occupancies not more than one (1) story in height and not more than seven-thousand five-hundred (7,500) square feet in total building floor area, and the construction, alteration or repair of any Group R occupancies not more than sixteen (16) units and not more than two (2) stories in height.
B-C RBC203.4 BUILDING CONTRACTOR C (HOME BUILDER) This license shall entitle the holder to contract for the construction, alteration and repair of one- and two-family dwellings not more than three (3) stories in height and their accessory structures. Further, this license shall entitle the holder to construct, alter and repair Group R-2 occupancies of not more than eight(8) units and not more than two (2) stories in height. When in the opinion of the Building Official the work to be performed is minor and does not affect the structure or safety of the building, the holder of this license may also contract for nonstructural repair and remodeling of all buildings with the exception of Group A, E, I, and H occupancies, or buildings that require Type I construction.
B-D RBC203.5 BUILDING CONTRACTOR D (SPECIALTY) This license shall be issued by the Board of Review to those engaged in contracting as other than a Building Contractor A,B, or C as licensed in this Code. for labor or for labor and material involving only a single trade, to include but not be limited to: foundation repair, masonry, retaining walls, roofing, siding, stucco, glazing, and swimming pools; and also those specifically designated below.
B-D-2A RBC203.5.2 Wrecking Contractor D-2A The examinee must have a minimum of four (4) years experience in wrecking. This contractor may wreck any building.
B-D-3B RBC203.5.3 Wrecking Contractor D-3B This license shall entitle the holder to wreck any building up to and including two (2) stories. Applicants for the D-3B Wrecking license must have a minimum of two (2) years' experience in wrecking.
B-D-4 RBC203.5.4 Moving Contractor D-4 This license shall entitle the holder to contract for the moving of buildings and structures along the roads and streets within the jurisdiction.
B-D-5A RBC203.5.5 Sign Contractor D-5A This license shall entitle the holder to contract for the erection, enlargement, moving and maintenance, or removal of all signs governed under this Code. A Building Contractor A or B may also perform the functions of a Sign Contractor D-5A.
B-D-6B RBC203.5.6 Sign Contractor D-6B This license shall entitle the holder to perform all work of a Sign Contractor D-5A except for free-standing signs over twenty (2) feet high and electric signs. A Sign Contractor D-6B may repaint or maintain any signs. A Building Contractor C may also perform the functions of a Sign Contractor D-6B.
B-E RBC203.6 BUILDING CONTRACTOR E (MAINTENANCE AND REMODELING) This license shall entitle the holder to contract for the construction, alteration and repair of structures accessory to one and two-family dwellings not intended as enclosed habitable space such as decks, fences, sheds, patio covers, and detached garages and workshops and for interior nonstructural repair or remodeling of one- or two-family dwellings.
B-F-1 RBC203.7 BUILDING CONTRACTOR F (SOLAR ENERGY) Unlimited. This license shall entitle the holder to contract for the installation of all kinds of active solar heating and cooling systems, and to make the necessary connections to related equipment. The work done under this license shall be limited to the solar collector installation and its connection to the existing gas, plumbing, and heating systems

Mechanical

Contractors

Type Code Description
H-A RBC204.2.1 Mechanical Contractor A (Commercial) This license shall authorize the holder to obtain permits for and perform the installation, replacement or service and repair of gas piping, heating, ventilating and air conditioning systems in any type or size of structure permitted by this Code. Employees of the contractor shall also be appropriately licensed to install, replace, service and repair these systems and equipment.
H-B RBC204.2.2 Mechanical Contractor B (Residential) This license shall authorize the holder to obtain permits for and perform the installation, replacement or service and repair of gas piping, heating, ventilating and air conditioning systems in one- and two- family dwellings and accessory structures of not more than three (3) stories in height. Employees of the contractor shall also be appropriately licensed to install, replace, service and repair these systems and equipment.
H-C RBC204.2.3 Mechanical Contractor C (Specialty) This license shall be issued by the Board of Review to those engaged in contracting as other than a Mechanical Contractor A or B and licensed in this Code for labor or for labor and material involving only one trade. These contractors shall be further classified into one of the following specialty categories.
H-C-1 Gas Piping Contractor This license shall authorize the holder to obtain permits for and perform the installation, replacement or service and repair of gas piping systems and the installation, replacement or service and repair of gas appliances not connected to duct systems. Employees of the contractor shall also be appropriately licensed to install, replace, service and repair these systems and equipment.
H-C-2 Commercial Refrigeration Contractor This license shall authorize the holder to obtain permits for and perform the installation, replacement or service and repair of commercial refrigeration systems. Employees of the contractor shall also be appropriately licensed to install, replace, service and repair these systems and equipment.
H-C-3 Residential Maintenance/Repair and Replacement Contractor This license shall authorize the holder to obtain permits for and perform the installation, replacement or service and repair of heating, ventilating and air conditioning systems on existing systems in one- and two-family dwellings and accessory structures of not more than three (3) stories in height. Employees of the contractor shall also be licensed to install, replace, service and repair these systems and equipment.
H-D RBC204.2.4 Mechanical Contractor D (Manufactured Buildings) This license shall authorize the holder to obtain permits for and perform the installation of Manufactured Buildings regulated in accordance with Section RBC309 of the Regional Building Code as well as perform the installation, replacement, or service and repair of gas piping, heating, ventilating, and air conditioning systems in these structures. Employees of the contractor shall also be appropriately licensed to install, replace, service and repair these systems and equipment.
H-E RBC204.2.5 Mechanical Contractor E (Elevator/Escalators) This license shall entitle the holder to obtain permits and perform the construction, alteration, or repair of any device governed by SECTION RBC310 - of the Regional Building Code.

Mechanics

Type Code Description
M-M1 RBC204.5 Heating Mechanic I (Fitter) This license allows the holder to engage in the installation and repair gas piping systems. An applicant for Heating Mechanic I license shall have one year experience in gas pipe fitting/installing and servicing. The applicant shall demonstrate proficiency in the use and calibration of a combustible gas indicator. All work must be performed under the direction of a Mechanical Contractor A, B, C (Gas Piping) or D.
M-M4 RBC204.5 Heating Mechanic IV (HVAC Service Technician) This license allows the holder to engage in the repair and servicing of heating, ventilation and air conditioning equipment and systems when employed by, and under the direction of a Mechanical Contractor A, B, C (except for Residential Remodeling), or D. The equipment and systems upon which the holder may work shall be restricted to only those specifically identified within the employer's Mechanical Contractors license(s). The holder may also repair leaks in gas piping systems that do not entail alteration or the complete replacement of the piping. The applicant for a Heating Mechanic IV license shall demonstrate proficiency in the use and calibration of a combustible gas indicator and a carbon monoxide detection instrument.

Electrical

Type Code Description
E-A RBC206.1 ELECTRICAL CONTRACTOR - COLORADO LICENSE REQUIRED No license other than a duly issued Colorado electrical contractor's license shall be required; however, Colorado licensed electrical contractors shall register with the Building Department.

Plumbing

Type Code Description
P-A RBC205.2.4 State Master Plumber's License A plumbing contractor holding a State master plumber's license and registered in this jurisdiction may obtain permits to install any of the above listed items without a separate license.

Fire

Fire Alarm Contractors

Type Code Description
F-A (FAC-A) RBC208.4 Fire Alarm Contractor A This license shall authorize the contractor to design, program, install, add to, alter, service, repair, maintain, test, and inspect fire alarm systems, dedicated function systems as well as the necessary control, alarm and detection components of releasing systems and communications methods. The license shall also authorize the contractor to obtain permits from the Fire Authority and to obtain a rough-in permit from the Building Department.
F-B (FAC-B) RBC208.5 Fire Alarm Contractor B This license shall authorize the company, corporation or similar entity to install, service, repair, test and inspect fire alarm systems, dedicated function systems as well as the necessary control, alarm and detection components of releasing systems and communications methods as well as add to or alter non-proprietary fire alarm systems. The license shall also authorize the contractor to obtain permits from the Fire Authority and to obtain a rough-in permit from the Building Department.

Fire Suppression Contractors

Type Code Description
B-D-7A (FSC-A) RBC207.4 Fire Suppression A (Contractor) This license shall authorize the contractor to design, install, add to, alter, service, repair, maintain, test, and inspect water-based fire suppression and standpipe systems of all types, including their necessary control, alarm and detection components, as well as retrofit existing systems with backflow prevention devices. The license shall also authorize the contractor to obtain permits from the Fire Authority for said services. This license does not authorize the contractor to make connection to or alter a building fire alarm system.
B-D-8B (FSC-B) RBC207.5 Fire Suppression B (Company or Dealer) This license shall authorize the contractor/dealer to install, add to, alter, service, repair, maintain, test and inspect portable fire extinguisher appliances, engineered and pre-engineered special hazard fire suppression systems including their necessary control, alarm, and detection components. The license shall also authorize the contractor/dealer to obtain permits from the Fire Authority for said services.
B-D-9C (FSC-C) RBC207.6 Fire Suppression C (Portable Fire Extinguisher – Contractor/Dealer) This license shall authorize the contractor/dealer to inspect, service, recharge, repair, maintain, install and hydrostatically test portable fire extinguisher appliances.
B-D-D10 (FSC-D) RBC207.7 Fire Suppression D (Portable Fire Extinguishers – Privately Owned Commercial, Industrial, and Institutional) This license shall authorize the company or organization to inspect, service, recharge, repair, maintain and install portable fire extinguisher appliances which are the property of or under the care and control of the applicant.
B-D-H11 (FSC-H) RBC207.8 Fire Suppression H (Fire Hydrant – Privately Owned) This license shall authorize the contractor to perform services associated with the maintenance, testing, and inspection of private fire hydrants.
B-D-7M (FSC-M) RBC207.9 Fire Suppression M (Multipurpose Fire Sprinkler Systems - Contractor) This license shall authorize the contractor to install, add to, alter, service, repair, maintain, test, and inspect multipurpose fire sprinkler systems. The license also shall authorize the contractor to obtain permits from the Fire Authority for said services.

Fire Alarm & Suppression Installers/Inspectors/Technicians

Type Code Description
FAI RBC208.6 Fire Alarm Installer The Fire Alarm On-site Installer (FAI) is a skilled worker employed by the permit-holding Fire Alarm Contractor and is qualified to ensure practical installation of the fire alarm system according to the standards set by the Fire Authority.
FA-I RBC208.7 Fire Alarm Inspector The Fire Alarm Inspector is a skilled worker employed by a Fire Alarm Contractor A or B and is qualified to ensure the proper inspection of the fire alarm system according to the standards set by the Fire Authority.
FSI RBC207.10 Fire Suppression On-Site Installer The On-site Installer is a skilled worker employed by a Fire Suppression Contractor A (FSC-A) who is qualified to ensure practical installation of water-based fire suppression and standpipe systems according to the standards set by the Fire Authority. The On-site Installer certificate allows a person to install, add to, alter, repair, maintain, test and inspect water-based suppression systems and standpipe systems of all types. All work must be performed under the direction of a licensed FSC-A contractor.
FS-I RBC207.14 Fire Suppression Inspector The Suppression Inspector is a skilled worker employed by a FSC-A, who is qualified to ensure proper testing and inspection of water-based fire suppression and standpipe systems in accordance with the standards set by the Fire Authority.
FSI-L RBC207.11 Fire Suppression Installer (Limited) The On-site Installer Limited is at a minimum a State of Colorado Residential Plumber employed by the permit-holding FSC-M who is qualified to ensure practical installation of the multipurpose fire sprinkler system according to the standards set by the Fire Authority. The On-site Installer Limited certificate allows a person to install, add to, alter, repair, maintain, test, and inspect single-family multipurpose automatic fire sprinkler systems. All work must be performed under the direction of a licensed FSC-M contractor.
FHT RBC207.12 Fire Hydrant Technician The fire hydrant technician is a skilled worker employed by a licensed FSC-H contractor who is qualified to ensure competent testing, maintenance, and inspection of private fire hydrants according to the standards set by the Fire Authority. The Fire Hydrant Technician certificate allows a person to service, test, maintain, repair, and inspect private fire hydrants. All work must be performed under the direction of a licensed FSC-H contractor.
FST-B RBC207.13 Fire Service Technician B The service technician is a skilled worker employed by a licensed FSC-B contractor who is qualified to ensure competent service, repair, testing, maintenance, and inspection of portable fire extinguisher appliances, engineered or pre-engineered special hazard systems including commercial kitchen suppression systems according to the standards set by the Fire Authority. The service technician certificate allows a person to service, repair, maintain, test and inspect portable fire extinguisher appliances and/or pre-engineered special hazard systems including commercial kitchen systems. All work must be performed under the direction of a licensed contractor.
FST-C RBC207.13 Fire Service Technician C The service technician is a skilled worker employed by a licensed FSC-C contractor who is qualified to ensure competent service, repair, testing, maintenance, and inspection of portable fire extinguisher appliances, engineered or pre-engineered special hazard systems including commercial kitchen suppression systems according to the standards set by the Fire Authority. The service technician certificate allows a person to service, repair, maintain, test and inspect portable fire extinguisher appliances and/or pre-engineered special hazard systems including commercial kitchen systems. All work must be performed under the direction of a licensed contractor.
FST-D RBC207.13 Fire Service Technician D The service technician is a skilled worker employed by a licensed FSC-D contractor who is qualified to ensure competent service, repair, testing, maintenance, and inspection of portable fire extinguisher appliances, engineered or pre-engineered special hazard systems including commercial kitchen suppression systems according to the standards set by the Fire Authority. The service technician certificate allows a person to service, repair, maintain, test and inspect portable fire extinguisher appliances and/or pre-engineered special hazard systems including commercial kitchen systems. All work must be performed under the direction of a licensed contractor.