Arizona Registrar of Contractors

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Contractor's License Classifications

The Arizona Registrar of Contractors issues separate licenses for commercial and residential work, and dual licenses that cover both commercial and residential, for each particular trade or field of the construction profession.
Residential contracting is defined as construction on residential structures such as houses, townhouses, condominiums or cooperative units and apartment complexes of four units or less. Residential construction also includes any appurtenances on or within residential property lines, connection to utility service and sewer lines, meters and mechanical or structural service for any residential structure.

Commercial contracting is anything other than residential.

Jump to Class: A B C CR KA KB Ror select the license type

ENGINEERING CONTRACTING (COMMERCIAL)

A- A-04 A-05 A-07 A-09 A-11 A-12 A-14 A-15 A-16 A-17 A-19



A- GENERAL ENGINEERING
This classification allows the licensee to construct or repair:
1. Fixed works
2. Streets
3. Roads
4. Power and utility plants
5. Dams
6. Hydroelectric plants
7. Sewage and waste disposal plants
8. Bridges
9. Tunnels
10.Overpasses
11. Public parks
Also included are the scopes of work allowed by the A-4 through A-19 and CR-2 through CR-80 classifications. This classification does not include work authorized by the B-1, B-2 or B-3 scopes.
A-04 DRILLING
Drilling includes horizontal and vertical drilling or boring, constructing, deepening, repairing, or abandoning wells; exploring for water, gas, and oil; and constructing dry wells, and monitor wells. Also included is the erection of rigs, derricks and related substructures, and installation, service and repair of pumps and pumping equipment.
A-05 EXCAVATING, GRADING AND OIL SURFACING
This classification allows the licensee to apply oil surfacing or other similar products; place shoring, casing, geotextiles or liners; and perform incidental blasting or drilling as required for the licensee to move, alter, or repair earthen materials by:
1. Digging
2. Trenching
3. Grading
4. Horizontal boring
5. Compacting
6. Filling
This license does not allow the licensee to excavate for water, gas or oil wells.
A-07 PIERS AND FOUNDATIONS
Installation of piers and foundations using concrete, rebar, post-tension and other materials common to the industry. Includes pile driving, excavation, forming and other techniques and equipment common to the industry.
A-09 SWIMMING POOLS
Construction, service, and repair of swimming pools and spas, including water and gas service lines from point of service to pool equipment, wiring from pool equipment to 1st readily accessible disconnect, pool piping, fittings, backflow prevention devices, waste lines, and other integral parts of a swimming pool or spa.
Also included is the installation of swimming pool accessories, covers, safety devices, and fencing for protective purposes, if in the original contract.
A-11 STEEL AND ALUMINUM ERECTION
Field fabrication, erection, repair, and alteration of architectural and structural steel and aluminum materials common to the industry, including field layout, cutting, assembly, and erection by welding, bolting, wire tying or riveting.
A-12 SEWERS, DRAINS AND PIPE LAYING
Installation and repair of any project involving sewer access holes, the laying of pipe for storm drains, water and gas lines, irrigation, and sewers. Includes connecting sewer collector lines to building drains and the installation of septic tanks, leach lines, dry wells, all necessary connections, liners and related excavating and backfilling
A-14 ASPHALT PAVING
Installation of asphalt paving, and all related fine grading on streets, highways, driveways, parking lots, tennis courts, running tracks, play areas, and gas station driveways and areas, using materials and accessories common to the industry. Includes the necessary excavation and grading only for height adjustment of existing sewer access holes, storm drains, water valves, sewer cleanouts, and drain gates. Also included is the scope of work allowed by the A-15 Seal Coating Classification.
A-15 SEAL COATING
Application of seal coating to asphalt paving surfaces. Includes repair of surface cracks and application of painted marking symbols.
A-16 WATERWORKS
All work necessary for the production and distribution of water including drilling well, setting casing and pump, related electrical work, related concrete work, excavation, piping for storage and distribution, storage tanks, related fencing, purification and chlorination equipment.
A-17 ELECTRICAL AND TRANSMISSION LINES
Installation, alteration, and repair of transmission lines on public right-of-ways, including erection of poles, guying systems, tower line erection, street lighting of all voltages, and all underground systems including ducts for signal, communication, and similar installations. Installing transformers, circuit breakers, capacitors, primary metering devices and other related equipment of all electrical construction is included.
All electrical systems of less than 600 volts on or inside a building are excluded.
A-19 SWIMMING POOLS, INCLUDING SOLAR
Construction, service, and repair of swimming pools and spas, with or without solar water heating devices, including water and gas service lines from point of service to pool equipment, wiring from pool equipment to first readily accessible disconnect, pool piping, fittings, backflow prevention devices, waste lines and other integral parts of a swimming pool, spa and attached solar water heating device.
Also included are swimming pool accessories, covers, safety devices, and fencing for protective purposes, if in the original contract.

GENERAL COMMERCIAL CONTRACTING

Jump to Class: A B C CR KA KB Ror select the license type

B- B-01 B-02 B-03 B-04 B-05 B-06 B-10



B-01 GENERAL COMMERCIAL CONTRACTOR
Construction, alteration, and repair in connection with any structure built, being built, or to be built for the support, shelter, and enclosure of persons, animals, chattels, or movable property of any kind. This scope includes the supervision of all or any part of the above and includes the management, or direct or indirect supervision of any work performed.
Also included are the scopes of work allowed by the CR-2 through CR-80 license classifications. Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor. This classification does not include work authorized by the A-, B-, or B-3 scopes.
B-02 GENERAL SMALL COMMERCIAL CONTRACTOR
Small commercial construction in connection with any new structure or addition built, being built, or to be built for the support, shelter and enclosure of persons, animals, chattels or movable property of any kind for which the total amount paid to the licensee does not exceed $750,000. This scope includes the supervision of all or any part of the above and includes the management or direct or indirect supervision of any work performed.
Also included are the scopes of work allowed by the CR-2 through CR-80 license classifications. Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor. This classification does not include work authorized by the A-, B-, or B-3 scopes.

RESIDENTIAL CONTRACTING


B- GENERAL RESIDENTIAL CONTRACTOR
Construction of all or any part of a residential structure or appurtenance. Also included are the scopes of work allowed by the B-3 and CR-2 through CR-80 license classifications. Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor. This classification does not include work authorized by the A-, B-1, or B-2 scopes.
B-03 GENERAL REMODELING AND REPAIR CONTRACTOR
Remodeling or repair of an existing residential structure or appurtenance except for electrical, plumbing, mechanical, boilers, swimming pools or spas and water wells, which must be subcontracted to an appropriately licensed contractor. The scope of work allowed under the CR-7 carpentry classification is included within this scope. This classification does not include work authorized by the A-, B-1, or B-2 scopes.
B-04 GENERAL RESIDENTIAL ENGINEERING CONTRACTOR
Construction and repair of appurtenances to residential structures. Work related to electrical, plumbing, air conditioning systems, boilers, and water wells must be subcontracted to an appropriately licensed contractor. This scope includes the CR-21, B-5 and all B-4R subclassifications.
Additional Scope Information (From "Rules" R4-9-101 Definitions Page 1)
Appurtenances means all structures and improvements subordinate to a residence within residential property lines, excluding the residential structure itself, such as driveways, fences, patios, swimming pools, landscaping, sport courts and gazebos.
B-05 GENERAL SWIMMING POOL CONTRACTOR
Construction and repair of swimming pools and spas. Installation of code required pool barriers around the swimming pool or spa and installation of utilities from the point of service to the pool equipment. Construction of other structures or appurtenances is excluded. This scope includes all B-5R subclassifications.
B-06 GENERAL SWIMMING POOL CONTRACTOR, INCLUDING SOLAR
The scope of work allowed in this classification is the same as B-5 (including all B-5R subclassifications) with the inclusion of solar heating devices.
B-10 PRE-MANUFACTURED SPAS AND HOT TUBS
Construction and repair of spas and hot tubs. Installation of code required pool barriers around the spa or hot tub and installation of utilities from the point of service to the spa equipment are included.

SPECIALTY RESIDENTIAL CONTRACTING

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R-02 R-04 R-04R R-06 R-09 R-11 R-13 R-16 R-17 R-22 R-37 R-37R R-39 R-39R R-53 R-62


R-02 EXCAVATING, GRADING AND OIL SURFACING
This classification allows the licensee to apply oil surfacing or other similar products and place shoring, casing, geotextiles or liners as required for the licensee to move, alter, or repair earthen materials by:
1. Digging
2. Trenching
3. Grading
4. Horizontal boring
5. Compacting
6. Filling
R-04 BOILERS, INCLUDING SOLAR
Installation and repair of steam and hot water boilers. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel. This scope includes the C-4R subclassification.
R-04R BOILERS
R-06 SWIMMING POOL SERVICE AND REPAIR
Service and minor repair of residential pools and accessories, excluding plumbing connections to a potable water system, gas lines, gas chlorine systems, and electrical work beyond the 1st disconnect. This classification does not include a complete replacement of plaster or pebble pool interiors and decks.
R-09 CONCRETE
Installation and repair of concrete, concrete products, and accessories common to the industry.
R-11 ELECTRICAL
Installation and repair of electrical systems.
R-13 ASPHALT PAVING
Installation and repair of paved areas using materials and methods common to the industry, including asphalt curbs, concrete bumper curbs, headers, and striping.
R-16 FIRE PROTECTION SYSTEMS
Installation and repair of approved types of fire prevention and fire protection systems including all mechanical apparatus, devices, piping, low voltage signaling systems, and equipment common to the fire protection industry. Installation of all other electrical devices, apparatus, and wiring must be subcontracted to a properly licensed contractor.
R-17 STRUCTURAL STEEL AND ALUMINUM
Installation and repair of architectural and structural shapes and members common to the industry, including reinforcing steel which may be used as structural members for buildings, equipment, and structures.
R-22 HOUSE MOVING
Disconnection of utilities is permitted, but connection of utilities and construction of foundations are not.
R-37 PLUMBING, INCLUDING SOLAR
Installation and repair of water and gas piping systems, fire protection systems, and sewage treatment systems. Included are all fixtures, vents, and devices common to the industry, as well as solar applications. This scope includes all C-37R subclassifications.
R-37R PLUMBING
R-39 AIR CONDITIONING AND REFRIGERATION, INCLUDING SOLAR
Installation and repair of comfort air conditioning systems, including refrigeration, evaporative cooling, ventilating, and heating with or without solar equipment. Installation and repair of machinery, units, accessories, refrigerator rooms, and insulated refrigerator spaces, and controls in refrigerators. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel. This scope includes all C-39R subclassifications.
R-39R AIR CONDITIONING AND REFRIGERATION
R-53 DRILLING
Installation and repair of wells, including test boring, exploratory drilling and all materials and devices common to the industry.
R-62 MINOR HOME IMPROVEMENTS
Remodeling, repairs, and improvements to existing structures or appurtenances not to exceed $5,000 for labor and materials per project per dwelling or appurtenance. The minor home improvement contractor shall not perform structural work to any existing structures or appurtenances, including load bearing masonry or concrete work (with the exception of on-grade flat work), and load bearing carpentry work (with the exception of patio or porch covers). All electrical, plumbing, air conditioning, heating, boiler, and roofing work shall be performed by an appropriately licensed contractor.

GENERAL DUAL ENGINEERING CONTRACTING

Jump to Class: A B C CR KA KB Ror select the license type

KA- KA-5 KA-6

KA- DUAL ENGINEERING
This classification allows the scope of work permitted by the commercial A- General Engineering and the B-4 General Residential Engineering licenses.
KA-5 DUAL SWIMMING POOL CONTRACTOR
This classification allows the scope of work permitted by the commercial A-9 Swimming Pools and the residential B-5 General Swimming Pool licenses.
KA-6 DUAL SWIMMING POOL CONTRACTOR INCLUDING SOLAR
This classification allows the scope of work permitted by the commercial A-19 Swimming Pools, Including Solar and the residential B-6 General Swimming Pools, Including Solar licenses.
KE- (as restricted by Registrar)

GENERAL DUAL LICENSE CONTRACTING

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KB-1 KB-2 KE- KO-

KB-1 DUAL BUILDING CONTRACTOR
This classification allows the scope of work permitted by the B-1 General Commercial Contractor and the B- General Residential Contractor licenses.
KB-2 DUAL RESIDENTIAL AND SMALL COMMERCIAL
This classification allows the scope of work permitted by the B-2 General Small Commercial and the B- General Residential Contractor licenses.
KO- (as restricted by Registrar)

SPECIALTY DUAL LICENSE CONTRACTING

Jump to Class: A B C CR KA KB Ror select the license type

CR-01 CR-02 CR-03 CR-04 CR-05 CR-06 CR-07 CR-08 CR-09 CR-10 CR-11 CR-12 CR-14 CR-15 CR-16 CR-17 CR-21 CR-24 CR-29 CR-31 CR-34 CR-36 CR-37 CR-38 CR-39 CR-40 CR-41 CR-42 CR-45 CR-48 CR-53 CR-54 CR-56 CR-57 CR-58 CR-60 CR-61 CR-62 CR-63 CR-65 CR-66 CR-67 CR-69 CR-74 CR-77 CR-78 CR-79 CR-80

CR-1 ACOUSTICAL SYSTEMS
This classification allows the licensee to install or repair pre-manufactured acoustical ceiling and wall systems. This classification does not allow the licensee to install or repair electrical or mechanical systems.
CR-2 EXCAVATING, GRADING AND OIL SURFACING
This classification allows the scope of work permitted by the commercial A-5 Excavating, Grading, and Oil Surfacing and the residential R-2 Excavating, Grading, and Oil Surfacing licenses.
CR-3 AWNINGS, CANOPIES, CARPORT AND PATIO COVERS
This classification allows the licensee to place concrete footings and concrete slabs as required for the licensee to install or repair:
1. Window awnings
2. Door hoods
3. Freestanding or attached canopies
4. Carport and patio covers constructed of metal, fabric, fiberglass, or plastic
5. Screened and paneled enclosures, which are not intended for use as habitable spaces, using metal panels, plastic inserts, and screen doors. A minimum of 60% of the wall area of an enclosure shall be constructed of screening material.
6. Fascia panels
7. Flashing and skirting
8. Exterior, detached metal storage units
This classification does not allow the licensee to install or repair electrical, plumbing, or air conditioning systems.
CR-4 BOILERS, STEAMFITTING AND PROCESS PIPING
This classification allows the scope of work permitted by the commercial C-4 Boilers, Steamfitting and Process Piping and the residential R-4R Boilers licenses.
CR-5 (as restricted by the Registrar)
CR-6 SWIMMING POOL SERVICE AND REPAIR
This classification allows the scope of work permitted by the commercial C-6 Swimming Pool Service and Repair and the residential R-6 Swimming Pool Service and Repair licenses.
CR-7 CARPENTRY
This classification allows the licensee to install or repair:
1. Rough carpentry
2. Finish carpentry
3. Hardware
4. Millwork
5. Metal studs
6. Metal doors or door frames
CR-8 FLOOR COVERING
This classification allows the licensee to prepare a surface as required for the licensee to install or repair the following floor covering materials:
1. Carpet
2. Floor tile
3. Wood
4. Linoleum
5. Vinyl
6. Asphalt
7. Rubber
8. Concrete coatings
CR-9 CONCRETE
This classification allows the scope of work permitted by the commercial C-9 Concrete and the residential R-9 Concrete licenses.
CR-10 DRYWALL
This classification allows the licensee to install or repair:
1. Gypsum wall board
2. Ceiling grid systems as supporting members for gypsum drywall
3. Movable partitions
4. Wall board tape and texture
5. Non-load bearing, lightweight, steel wall partitions
CR-11 ELECTRICAL
This classification allows the scope of work permitted by the commercial C-11 Electrical and residential R-11 Electrical licenses.
CR-12 ELEVATORS
This classification allows the licensee to install or repair:
1. Elevators
2. Dumbwaiters
3. Escalators
4. Moving walks and ramps
5. Stage and orchestra lifts
CR-14 FENCING
This classification allows the licensee to install or repair:
1. Metal, wood, and cement block fencing
2. Automatic gates
3. Fire access strobes
4. Highway guard rails
5. Cattle guards
6. Low voltage U.L. approved electrical fence protective devices of less than 25 volts and 100 watts
This classification does not allow the licensee to install or repair retaining walls.
CR-15 BLASTING
This classification allows the licensee to drill, bore, move earth, and build temporary shelters or barricades, as required for the licensee’s use of explosives and explosive devices for:
1. Excavation
2. Demolition
3. Geological exploration
4. Mining
5. Construction related blasting
CR-16 FIRE PROTECTION SYSTEMS
This classification allows the scope of work permitted by the commercial C-16 Fire Protection Systems and the residential R-16 Fire Protection licenses.
CR-17 STEEL AND ALUMINUM ERECTION
This classification allows the scope of work permitted by the commercial A-11 Steel and Aluminum Erection and the residential R-17 Structural Steel and Aluminum licenses.
CR-21 LANDSCAPING AND IRRIGATION SYSTEMS
This classification allows the licensee to treat, condition, prepare, and install:
1. Topsoil
2. Plants and decorative vegetation
3. Non-loadbearing concrete
4. Uncovered patios, walkways, driveways made of brick, stone, pavers or gravel
5. Wooden decks no higher than 29 inches above finish grade
6. Decorative garden walls up to six feet from finish grade
7. Fences and screens up to six feet from finish grade
8. Retaining walls up to three feet from the finish grade of the lower elevation
9. Wood-burning fire pit no higher than 16 inches above finish grade
10. Low voltage landscape lighting
11. Water features that are not attached to swimming pools; including any necessary: electrical wiring of 120 volts or less, connection to potable water lines, backflow prevention devices, hose bibs, excavating, trenching, boring, backfilling, or grading
12. Irrigation systems, including any necessary: electrical wiring of 120 volts or less, connection to potable water lines, backflow prevention devices, hose bibs, excavating, trenching, boring, backfilling, or grading
This classification does not allow the licensee to install, contract for, or subcontract new electrical service panels, gas or plumbing lines, blasting, outdoor kitchens, gazebos, room additions, swimming pools, pool deck coatings, barbeques, concrete driveways, load bearing walls, or perimeter fencing.
CR-24 ORNAMENTAL METALS
This classification allows the licensee to fabricate, install, or repair non-structural ornamental metal, such as:
1. Metal folding gates
2. Guard and hand rails
3. Wrought iron fencing and gates
4. Window shutters and grilles
5. Room dividers and shields
6. Metal accessories common to the industry
This classification does not allow the licensee to install fire escapes and stairs.
CR-29 MACHINERY (as restricted by Registrar)
CR-31 MASONRY
This classification allows the licensee to grout, caulk, sand blast, tuckpoint, mortar wash, parge, clean and weld reinforcing steel as required for the licensee to install or repair:
1. Masonry
2. Brick
3. Concrete block
4. Insulating concrete forms
5. Adobe units
6. Stone
7. Marble
8. Slate
9. Mortar-free masonry products
CR-34 PAINTING
This classification allows the licensee to perform surface preparation, caulking, drywall patching, drywall taping, sanding, and cleaning as required for the licensee to install, apply or repair:
1. Wallpaper
2. Wall covering cloth
3. Wall covering vinyl
4. Decorative texture
5. Paint
CR-36 PLASTERING
This classification allows the licensee to install laths, metal studs, metal grid systems, or other bases as required for the licensee to coat surfaces by trowel or spray with combinations of:
1. Sand mixtures (e.g. stucco)
2. Gypsum plaster
3. Cement
4. Acoustical plaster
5. Swimming pool interiors (excluding tile)
CR-37 PLUMBING
This classification allows the scope of work permitted by the commercial C-37 Plumbing and the residential R-37R Plumbing licenses.
CR-38 SIGNS
This classification allows the licensee to install or repair posts, poles, supports, paint, and electrical wiring as required for the licensee to fabricate, install or repair:
1. Signs
2. Displays
3. Flagpoles
CR-39 AIR CONDITIONING AND REFRIGERATION
This classification allows the scope of work permitted by the commercial C-39 Air Conditioning and Refrigeration and the residential R-39R Air Conditioning and Refrigeration licenses.
CR-40 INSULATION
This classification allows the licensee to install supports, fastening systems, adhesives, mastics, or plastics as required for the licensee to install or repair:
1. Insulation materials
2. Preformed architectural acoustical materials
3. Insulation protecting materials
CR-41 SEPTIC TANKS AND SYSTEMS
This classification allows the licensee to excavate, install or repair pipe, backfill, and compact soil as required for the licensee to install or repair:
1. Septic tanks
2. Aerobic digesters
3. Leaching fields
CR-42 ROOFING
This classification allows the licensee to apply or install weatherproofing (i.e. asphaltum, pitch, tar, felt, glass fabric, or flax) or roof accessories (i.e. flashing, valleys, gravel stops, or sheet metal) as required for the licensee to install or repair:
1. Roof tile
2. Shingles
3. Shakes
4. Slate
5. Metal roofing systems
6. Urethane foam
7. Roof insulation or coatings on or above the roof deck
This classification allows the licensee to replace up to three sheets (96 square feet) of plywood on the roof substrate; and install new or replace existing skylights where it does not require changes to the roof framing or roof structure.
CR-45 SHEET METAL
This classification allows the licensee cut, fabricate, install or repair:
1. Sheet metal
2. Cornices
3. Flashings
4. Gutters
5. Leaders
6. Pans
7. Kitchen equipment
8. Duct work
9. Skylights
10. Patented chimneys
11. Metal flues
12. Metal roofing systems
CR-48 CERAMIC, PLASTIC AND METAL TILE
This classification allows the licensee to prepare a surface as required for the licensee to install or repair the following tile products on horizontal and vertical surfaces:
1. Ceramic
2. Clay
3. Faience
4. Metal
5. Mosaic
6. Glass mosaic
7. Paver
8. Plastic
9. Quarry
10. Stone tiles such as marble or slate
11. Terrazzo
Installation of shower doors and tub enclosures are included when a part of the original contract.
CR-53 WATER WELL DRILLING
This classification allows the scope of work permitted by the commercial C-53 Water Well Drilling and the residential R-53 Drilling licenses.
CR-54 WATER CONDITIONING EQUIPMENT
This classification allows the licensee to perform trenching, backfilling, and grading; and install and repair piping, fittings, valves, concrete supports, and electrical control panels of less than 25 volts and required grounding devices; as required for the licensee to install or repair:
1. Water conditioning equipment
2. Misting systems
3. Exchange tanks
4. Indirect waste pipe carrying brine, backwash and rinse water to the point of disposal
CR-56 WELDING
This classification allows the licensee to weld metals.
CR-57 WRECKING
This classification allows the licensee to install or repair temporary ramps, barricades, and pedestrian walkways as required for the licensee to demolish, dismantle, or remove structures not intended for reuse. This classification does not allow the licensee to use explosives.
CR-58 COMFORT HEATING, VENTILATING, EVAPORATIVE COOLING
This classification allows the scope of work permitted by the commercial C-58 Comfort Heating, Ventilating, Evaporative Cooling and the residential R-39R Warm Air Heating, Evaporative Cooling, and Ventilating licenses.
CR-60 FINISH CARPENTRY
This classification allows the licensee to install or repair millwork such as:
1. Cabinets
2. Counter tops
3. Case sash
4. Door trim
5. Metal doors
6. Automatic door closers
7. Wood flooring
CR-61 CARPENTRY, REMODELING AND REPAIRS
For projects of $50,000 or less, this classification allows the licensee, on existing structures, to install or repair:
1. Rough carpentry
2. Finish carpentry
3. Roofing
4. Hardware
5. Millwork
6. Metal studs
7. Metal doors or door frames
Work related to electrical, plumbing, air conditioning systems, boilers, swimming pools, spas and water wells must be subcontracted to an appropriately licensed contractor.
CR-62 REINFORCING BAR AND WIRE MESH
This classification allows the licensee to install or repair:
1. Reinforcing bar
2. Post-tension
3. Wire mesh
CR-63 APPLIANCES
This classification allows the licensee to install and repair appliances. This classification does not allow the license to install or repair gas, electrical, or plumbing lines.
CR-65 GLAZING
This classification allows the licensee to install or repair weatherproofing, caulking, sealants, and adhesives as required for the licensee to assemble, install or repair:
1. Glass products
2. Window film
3. Window treatments
4. Steel and aluminum glass holding members
CR-66 SEAL COATING
This classification allows the scope of work permitted by the commercial A-15 Seal Coating and the residential R-13 Asphalt paving licenses.
CR-67 LOW VOLTAGE COMMUNICATION SYSTEMS
This classification allows the licensee to build antenna towers on existing structures as required for the licensee to install, service or repair:
1. Alarm systems
2. Telephone systems
3. Sound systems
4. Intercommunication systems
5. Public addressing systems
6. Television or video systems
7. Low voltage signaling devices
8. Low voltage landscape lighting that does not exceed 91 volts
9. Master and program clocks (only low voltage wiring and needed equipment)
CR-69 ASPHALT PAVING
This classification allows the scope of work permitted by the commercial A-14 Asphalt Paving and the residential R-13 Asphalt Paving licenses.
CR-74 BOILERS, STEAMFITTING AND PROCESSPIPING, INCLUDING SOLAR
This classification allows the scope of work permitted by the commercial C-74 Boilers, Steamfitting and Process Piping, Including Solar and the residential R-4 Boilers Including Solar licenses.
CR-77 PLUMBING INCLUDING SOLAR
This classification allows the scope of work permitted by the commercial C-77 Plumbing Including Solar and the residential R-37 Plumbing Including Solar licenses.
CR-78 SOLAR PLUMBING LIQUID SYSTEMS ONLY
This classification allows the scope of work permitted by the commercial C-78 Solar Plumbing Liquid Systems Only and the residential R-37R Solar Plumbing Liquid Systems Only licenses.
CR-79 AIR CONDITIONING AND REFRIGERATION INCLUDING SOLAR
This classification allows the scope of work permitted by the commercial C-79 Air Conditioning and Refrigeration Including Solar and the residential R-39 Air Conditioning and Refrigeration Including Solar licenses.
CR-80 SEWERS, DRAINS AND PIPE LAYING
This classification allows the scope of work permitted by the commercial A-12 Sewers, Drains, and Pipe Laying and the residential R-37R Sewers, Drains and Pipe Laying licenses.

SPECIALTY COMMERCIAL CONTRACTING

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C-04 C-06 C-09 C-11 C-16 C-27 C-37 C-39 C-49 C-53 C-58 C-74 C-77 C-78 C-79


C-04 BOILERS, STEAMFITTING AND PROCESS PIPING
Installation, alteration, and repair of steam and hot water systems and boilers, including chimney connections, flues, refractories, burners, piping, fittings, valves, thermal insulation, and accessories; fuel and water lines from source of supply to boilers; process and specialty piping and related equipment; pneumatic and electrical controls.
If necessary, a new circuit may be added to the existing service panel or sub-panel.
Excluded is the installation of a new service panel or sub-panel.
C-06 SWIMMING POOL SERVICE AND REPAIR
Service, replacement, and repair of swimming pools including all existing connections and equipment. Pool gas heaters and gas piping from meter to heater may be installed only if the existing line and gas supply are adequate.
Application of pool coatings to interior of pool in conjunction with minor repairs to pool tile, plaster, and decks.
Excluded are chlorine gas connections, connections to potable water, and electric connections beyond first readily accessible disconnect.
This classification excludes a complete replacement of plaster or pebble pool interiors and decks.
C-09 CONCRETE
All work in connection with the processing, proportioning, batching, mixing, conveying, and placing of concrete composed of materials common to the concrete industry, including finishing, coloring, curing, repairing, testing, drilling, sawing, grinding, chipping, and grouting. Placing film barriers, sealing, and waterproofing are included.
Construction, centering, and assembling forms, molds, insulating concrete forms, slipforms, and pans.
Trenching, excavating, backfilling, and grading in connection with concrete construction.
Installation of embedded items essential to or comprising an integral part of the concrete or concrete construction, including reinforcing elements and accessories.
C-11 ELECTRICAL
Installation, alteration, and repair of any wiring, related electrical material and equipment used in the generating, transmitting, or utilization of electrical energy less than 600 volts, including all overhead electrical wiring on public right-of-ways for signs and street decorations, and all underground electrical distribution systems of less than 600 volts serving private properties.
Installation, alteration, and repair on other than public right-of-ways of all outside, overhead, and underground electrical construction and all wiring in or on any building of less than 600 volts.
C-16 FIRE PROTECTION SYSTEMS
Installation, alteration, and repair of fire protection systems using water, steam, gas, or chemicals. Included is any required excavation, trenching, backfilling and grading, piping from structure, and connections to off-premise water supply adjacent to property involving a fire protection system.
Systems may include the following areas of work and related equipment: restaurant hood protection systems; fire pumps and drivers; pressure and storage tanks; all piping and valves; sprinkler heads and nozzles; and application of materials for the prevention of corrosion or freezing.
Also included are air compressors, air receivers, bottled inert gases, pressurized chemicals, manifolds, pneumatic, hydraulic, or electrical controls, low voltage signaling systems, control piping, and the flushing and testing of systems.
C-27 LIGHTWEIGHT PARTITIONS
Installation of lightweight (not to exceed 14 gauge) metal wall partitions, including suspended metal ceiling grid systems, as supporting members for the application of building materials such as: application and repair of gypsum plaster, cement, acoustical plaster, or a combination of materials and aggregates, that create a permanent coating; the application of such materials over any surface which offers either a mechanical or suction type bond, sprayed, dashed, or troweled to the surface; surface sandblasting preparatory to plastering or stucco; installation of plastering accessories and lath products manufactured to provide a key or suction type bond for the support of various type plaster coatings; and installation and repair of gypsum wall board, pointing, accessories, taping, and texturing on structures both interior and exterior.
C-37 PLUMBING
Installation, alteration, and repair of all plumbing when performed solely within property lines and not on public easements or right-of-ways, except as hereinafter provided.
Installation, alteration, and repair of all piping, fixtures, and appliances related to water supply, including pressure vessels and tanks (excluding municipal or related water supply systems); venting and sanitary drainage systems for all fluid, semi-fluid, and organic wastes; septic tanks and leaching lines; roof leaders; lawn sprinklers; water conditioning equipment; piping; and equipment for swimming pools.
Also included are piping, fixtures, appliances, and pressure vessels for manufactured and natural gases, compressed air and vacuum systems, petroleum, fuel oil, non-potable liquids, hot water heating, and hot water supply systems operating at pressures not exceeding 30 PSIG, or temperatures not exceeding 220° F; steam heating and steam supply systems not exceeding 15 PSIG operating pressure; gas or oil fired space heaters and furnaces, excluding duct work. Piping for water cooling systems, excluding the refrigerant piping and equipment. Testing and balancing of hydronics systems.
Sewer, gas, water lines, and connections from structure to the nearest point of public supply or disposal may cross public or private easements or be installed within private easements or right-of-ways. Pipe installed across public property may not be increased in size, or make any other connection between the point of exit from private property to the point of connection at public supply or disposal. These lines shall not be installed parallel to main lines in public easements or right-of-ways.
C-39 AIR CONDITIONING AND REFRIGERATION
Installation, alteration, and repair of refrigeration and evaporative cooling systems.
Installation, alteration, and repair of heating systems of "wet", "dry" or radiant type. "Wet" systems include steam or hot water boilers and coils, or baseboard convectors, and are limited to 30 PSIG operating pressure of 220° F for hot water and 15 PSIG operating pressure for steam. Dry systems include gas fired furnaces and space heaters.
Installation, alteration, and repair of ventilation systems includes duct work, air filtering devices, water treatment devices, pneumatic or electrical controls, and control piping. Thermal and acoustical insulation of refrigerant pipes and ductwork, vibration isolation materials and devices, liquid fuel piping and tanks, water and gas piping from service connection to the equipment it serves. Testing and balancing of refrigerant, cooling, heating circuits, and air handling systems.
If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
C-49 COMMERCIAL, INDUSTRIAL REFRIGERATION
Installation, alteration, and repair of refrigeration equipment and systems used for processing, storage, and display of food products and other perishable commodities.
Includes commercial, industrial, and manufacturing processes requiring refrigeration excluding comfort air conditioning.
Systems may also include the following areas of work and related equipment: temperature, safety and capacity controls, thermal insulation, vibration isolation materials and devices; water treatment devices; construction and installation of walk-in refrigeration boxes, liquid fuel piping and tanks, water and gas piping from equipment to service connection; and testing and balancing of refrigeration equipment and systems.
If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
C-53 WATER WELL DRILLING
Drill new water wells or deepen existing water wells by use of standard practices including the use of cable tools, compressed air percussion, rotary, air rotary, or reverse circulation rotary methods. Includes installing casing, gravel pack, perforating and sanitary seals. Repair existing wells by sand pumping, jetting, acidizing, swabbing, clean out, re-perforating, swaging, installation of annealed lines, and the removal of debris.
Includes photographing interior of wells with appropriate equipment. Installation of jet and submersible pumps; electrical pump controls and wiring from pump equipment to first readily accessible disconnect; and water line to storage or pressure tank, not to exceed 50 linear feet. Use of a test pump to develop a new well, or repair an existing well, when provided in contract, is limited to 5 horsepower.
Installation of concrete pump bases not to exceed 50 square feet.
Installation of protective fencing when included in original contract.
C-58 COMFORT HEATING, VENTILATING, EVAPORATIVE COOLING
Installation, alteration, and repair of warm air heating systems, gas fired furnaces and space heaters, ventilation and evaporative cooling units, or any combination of these.
Systems may include the following areas of work and related equipment; duct work, air filtering devices, pneumatic or electrical controls, control piping, thermal and acoustical insulation, vibration isolation materials and devices, liquid fuel piping and tanks, water and gas piping from service connection to equipment it serves. Testing and balancing of air handling systems.
If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.
C-74 BOILERS, STEAMFITTING AND PROCESS PIPING, INCLUDING SOLAR
Installation, alteration, and repair of steam and hot water systems and boilers including solar. Also included are chimney connections, flues, refractories, burners, piping, fittings, valves, thermal insulation and accessories; fuel and water lines from source of supply to boilers; process and specialty piping and related equipment; pneumatic and electrical controls.
If necessary, a new circuit may be added to the existing service panel or sub-panel.
Excluded is the installation of a new service panel or sub-panel.
C-77 PLUMBING INCLUDING SOLAR
Installation, alteration, and repair of all plumbing including solar, when performed solely within property lines and not on public easements or right-of-ways except as hereinafter provided.
Installation, alteration, and repair of all piping, fixtures and appliances related to water supply, including pressure vessels and tanks (excluding municipal or related water supply systems); venting and sanitary drainage systems for all fluid, semi-fluid, and organic wastes; septic tanks and leaching lines; roof leaders; lawn sprinkler systems; water conditioning equipment; piping and equipment for swimming pools.
Also included are piping, fixtures, appliances, and pressure vessels for manufactured and natural gases, compressed air and vacuum systems, petroleum, fuel oil, non-potable liquids, hot water heating and hot water supply systems operating at pressures not exceeding 30 PSIG or temperatures not exceeding 220° F; steam heating and steam supply systems not exceeding 15 PSIG operating pressure; gas or oil fired space heaters and furnaces excluding duct work. Piping for water cooling systems, excluding the refrigerant piping and equipment. Testing and balancing of hydronics systems.
Sewer, gas, water lines, and connections from structure to the nearest point of public supply or disposal may cross public or private easements or be installed within private easements. Pipe installed across public property may not be increased in size or make any other connection between the point of exit from private property to point of connection at public supply or disposal. These lines shall not be installed parallel to main lines in public easements or right-of-ways.
C-78 SOLAR PLUMBING LIQUID SYSTEMS ONLY
Installation, alteration, and repair of solar water heating systems operating at temperatures not exceeding 220° F, including thermosyphon, direct (open loop), and indirect (closed loop),but excludes air as a transfer medium.
Includes installation of collectors, storage and expansion tanks, heat exchangers, piping valves, pumps, sensors and low voltage controls which connect to existing plumbing and electrical stub-outs at the water tank location.
Installation of solar water heating systems for swimming pools which tie into and operate from the conventional pool systems, but excludes all non-solar plumbing, electrical and mechanical systems and components.
Installation of back-up and auxiliary heating systems only when such systems are included in the original contract and when such systems are an integral part of the solar collector or storage equipment.
C-79 AIR CONDITIONING AND REFRIGERATION INCLUDING SOLAR
Installation, alteration, and repair of refrigeration and evaporative cooling systems, including solar.
Installation, alteration, and repair of heating systems of "wet", "dry" or radiant type. "Wet" systems include steam, or hot water boilers and coils, or baseboard convectors and are limited to 30 PSIG operating pressure of 220° F for hot water and 15 PSIG operating pressure for steam. Dry systems include gas fired furnaces and space heaters.
Installation, alteration, and repair of ventilation systems.
Installation of these systems include duct work, air filtering devices, water treatment devices, pneumatic or electrical controls, and control piping. Thermal and acoustical insulation, vibration isolation materials and devices, liquid fuel piping and tanks, and water and gas piping from service connection to equipment it serves. Testing and balancing of refrigerant, cooling and heating circuits, and air handling systems.
If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.

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