DESCRIPTION OF
CLASSIFICATIONS
CONTRACTORS STATE LICENSE BOARD
California Department of Consumer Affairs
© 2021, CALIFORNIA CONTRACTORS STATE LICENSE BOARD
Members of the Contractors State License Board
Kevin J. Albanese, (B) General Contractor Member
Frank Altamura, Jr., Public Member
Agustin “Augie” Beltran, Public Member
Rodney M. Cobos, Public Member
David De La Torre, Public Member
Miguel Galarza, (B) General Contractor Member
Donald Giarratano, (C) Specialty Contractor Member
Susan Granzella, Public Member
Diana Love, Public Member, Senior Citizen Organization
Michael Mark, Labor Organization Member
James Ruane, (C) Specialty Contractor Member
Johnny Simpson, Public Member
Nancy Springer, Building Ofcial Member
Mary Teichert, (A) Engineering Contractor Member
Vacant, Public Member
Gavin Newsom
Governor
Lourdes M. Castro Ramírez
Secretary, Business, Consumer Services and Housing Agency
Kimberly Kirchmeyer
Director, Department of Consumer Affairs
David R. Fogt
Registrar, Contractors State License Board
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Description of CSLB
License Classications
The California Contractors State License Board (CSLB) issues licenses to contract
in particular trades or elds of the construction profession. Each separate trade is
recognized as a “classication.” Licensed contractors may add any classication
for which they are qualied, upon application and examination. General contractor
classication statutes are cited from California Business and Professions Code
(BPC) sections 7056-7059.
CSLB issues licenses for the following classications:
Class A — General Engineering Contractor
The principal business is in connection with xed works requiring specialized
engineering knowledge and skill.
Class “B” — General Building Contractor
The principal business is in connection with any structure built, being built, or
to be built, requiring in its construction the use of at least two unrelated building
trades or crafts.
Class “B-2” — Residential Remodeling Contractor
The principal business is in connection with any existing residential wood frame
structure with nonstructural projects requiring at least three unrelated building
trades or crafts.
Class “C” — Specialty Contractor
There are 42 separate “C” license classications for contractors whose construction
work requires special skill and whose principal contracting business involves the use
of specialized building trades or crafts.
GENERAL CONTRACTORS
A” General Engineering
A general engineering contractor is a contractor whose principal contracting business
is in connection with xed works requiring specialized engineering knowledge and skill,
including the following divisions or subjects: irrigation, drainage, water power, water
supply, ood control, inland waterways, harbors, docks and wharves, shipyards and
ports, dams and hydroelectric projects, levees, river control and reclamation works,
railroads, highways, streets and roads, tunnels, airports and airways, sewers and sewage
CSLB DESCRIPTION OF CLASSIFICATIONS
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CALIFORNIA CONTRACTORS STATE LICENSE BOARD
disposal plants and systems, waste reduction plants, bridges, overpasses, underpasses
and other similar works, pipelines and other systems for the transmission of petroleum
and other liquids or gaseous substances, parks, playgrounds and other recreational
works, reneries, chemical plants and similar industrial plants requiring specialized
engineering knowledge and skill, powerhouses, power plants and other utilities plants
and installations, mines and metallurgical plants, land leveling and earthmoving projects,
excavating, grading, trenching, paving and surfacing work, and cement and concrete
works in connection with the above mentioned xed works. (BPC §7056)
“B” General Building
(a) A general building contractor’s principal contracting business is in whole or partial
connection with any structure built, being built, or to be built, for the support,
shelter and enclosure of persons, animals, chattels, or moveable property of any
kind requiring in its construction the use of at least two unrelated building trades or
crafts, or to superintend the whole or any part thereof. This does not include anyone
who merely furnishes materials or supplies under Section 7045 without fabricating
them into, or consuming them in the performance of the work of the general
building contractor.
(b) A general building contractor may take a prime contract or a subcontract for a framing
or carpentry project. However, a general building contractor shall not take a prime
contract for any project involving trades other than framing or carpentry unless the
prime contract requires at least two unrelated building trades or crafts other than
framing or carpentry, or unless the general building contractor holds the appropriate
license classication or subcontracts with an appropriately licensed contractor to
perform the work. A general building contractor shall not take a subcontract involving
trades other than framing or carpentry, unless the subcontract requires at least two
unrelated trades or crafts other than framing or carpentry, or unless the general
building contractor holds the appropriate license classication. The general building
contractor may not count framing or carpentry in calculating the two unrelated trades
necessary in order for the general building contractor to be able to take a prime
contract or subcontract for a project involving other trades.
(c) No general building contractor shall contract for any project that includes the “C-16”
Fire Protection classication as provided for in Section 7026.12 or the “C-57” Well
Drilling classication as provided for in Section 13750.5 of the Water Code, unless the
general building contractor holds the appropriate license classication, or subcontracts
with the appropriately licensed contractor. (BPC §7057)
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“B-2” Residential Remodeling
(a) A residential remodeling contractor is a contractor whose principal contracting
business is in connection with any project to make improvements to, on, or in an
existing residential wood frame structure, and the project requires the use of at least
three unrelated building trades or crafts for a single contract.
(b) (1) A residential remodeling contractor may take a prime contract for trades or crafts
which may include, but is not limited to, the following:
(A) Drywall.
(B) Finish carpentry.
(C) Flooring.
(D) Insulation.
(E) Painting.
(F) Plastering.
(G) Roof repair.
(H) Siding.
(I) Tiling.
(J) Installing, repairing, or replacing electrical xtures, such as dimmers, fans,
lights, outlets, and switches.
(K) Installing, repairing, or replacing plumbing xtures, such as faucets, sinks,
toilets, and tubs.
(L) Installing, repairing, or replacing mechanical xtures, such as air lters,
air delivery and return grills, and preassembled exhaust fans.
(2) A residential remodeling contractor shall not take a contract unless the contract
includes three or more unrelated trades or crafts.
(3) Subject to the limit described in paragraph (2), a residential remodeling contractor
may self-perform its contract or may subcontract any of the trades or crafts to
appropriately licensed subcontractor or subcontractors.
(c) A residential remodeling contractor shall conduct its contracting activity in accordance
with the following restrictions:
(1) A residential remodeling contractor shall not contract for a project that includes
the following trades or crafts unless the contractor holds the appropriate license
classication or subcontracts with an appropriately licensed contractor:
(A) C-16 Fire Protection.
(B) C-22 Asbestos Abatement.
(C) C-57 Well Drilling.
(2) A residential remodeling contractor shall not contract to make structural changes
to load bearing portions of an existing structure, including, but not limited to,
footings, foundations, load bearing walls, partitions, and roof structures.
(3) (A) The residential remodeling contractor shall not contract to install, replace,
substantially alter, or extend electrical, mechanical, or plumbing systems or their
component parts, or the mechanisms or devices that are part of those systems,
unless the residential remodeling contractor holds the appropriate license
classication or subcontracts with an appropriately licensed contractor.
(B) The residential remodeling contractor may contract to make minor alterations
to existing electrical, mechanical, or plumbing systems to effectuate the
purpose of installing, repairing, or replacing electrical, mechanical and
plumbing xtures, provided that the contract requires the use of at least
three unrelated building trades or crafts.
(C) The board may adopt regulations to further dene what activity constitutes
the minor alterations described in subparagraph (B), and to further dene
the electrical, mechanical, or plumbing systems, or their component parts,
or the mechanisms or devices that are part of those systems, that are
subject to the restriction described in subparagraph (A).
(d) This contractor classication may be cited as the B-2 Residential Remodeling
Contractor. (BPC §7057.5)
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CALIFORNIA CONTRACTORS STATE LICENSE BOARD
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SPECIALTY CLASSIFICATIONS
(a) A specialty contractor is a contractor whose operations involve the performance of
construction work requiring special skill and whose principal contracting business
involves the use of specialized building trades or crafts.
(b) A specialty contractor includes a contractor whose operations include the business
of servicing or testing re extinguishing systems.
(c) A specialty contractor includes a contractor whose operations are concerned
with the installation and laying of carpets, linoleum, and resilient oor covering.
(d) A specialty contractor includes a contractor whose operations are concerned with
preparing or removing roadway construction zones, lane closures, agging, or trafc
diversions on roadways, including, but not limited to, public streets, highways, or
any public conveyance. (BPC §7058)
The following specialty classications are found, verbatim, in the California Code of
Regulations (CCR) unless otherwise noted.
C-2 Insulation and Acoustical
An insulation and acoustical contractor installs any insulating media and preformed
architectural acoustical materials for the purpose of temperature and/or sound control.
(832.02 CCR)
C-4 Boiler, Hot-Water Heating and Steam Fitting
A boiler, hot-water heating and steam tting contractor installs, services and repairs
power boiler installations, hot-water heating systems and steam tting, including re-
tube and water-tube steel power boilers and hot-water heating low pressure boilers,
steam tting and piping, ttings, valves, gauges, pumps, radiators, convectors, fuel oil
tanks, fuel oil lines, chimneys, ues, heat insulation and all other equipment, including
solar heating equipment, associated with these systems. (832.04 CCR)
C-5 Framing and Rough Carpentry
A framing and rough carpentry contractor performs any form work, framing or rough
carpentry necessary to construct framed structures; installs or repairs individual
components of framing systems and performs any rough carpentry or associated work,
including but not limited to the construction or installation of: sub-ooring, siding,
exterior staircases and railings, overhead doors, roof decking, truss members, and
sheathing. (832.05 CCR)
CSLB DESCRIPTION OF CLASSIFICATIONS
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CALIFORNIA CONTRACTORS STATE LICENSE BOARD
C-6 Cabinet, Millwork and Finish Carpentry
A cabinet, millwork and nish carpentry contractor makes cabinets, cases, sashes,
doors, trims, non-bearing partitions and other items of “nish carpentry” by cutting,
surfacing, joining, gluing and fabricating wood or other products to provide a functional
surface. This contractor also places, erects, and nishes such cabinets and millwork in
structures. (832.06 CCR)
C-7 Low Voltage Systems
A communication and low voltage systems contractor installs, services and maintains
all types of communication and low voltage systems which are energy limited and do
not exceed 91 volts. These systems include, but are not limited to, telephone systems,
sound systems, cable television systems, closed-circuit video systems, satellite dish
antennas, instrumentation and temperature controls, and low voltage landscape lighting.
Low voltage re alarm systems are specically not included in this section. (832.07 CCR)
C-8 Concrete
A concrete contractor forms, pours, places, nishes and installs specied mass,
pavement, at and other concrete work; and places and sets screeds for pavements or
atwork. This class shall not include contractors whose sole contracting business is the
application of plaster coatings or placing and erecting of steel or bars for the reinforcing
of mass, pavement, at and other concrete work. (832.08 CCR)
C-9 Drywall
A drywall contractor lays out and installs gypsum wall board and gypsum wall board
assemblies, including nonstructural metal framing members, and performs the taping
and texturing operations including the application of compounds that adhere to wall
board to produce a continuous smooth or textured surface. (832.09 CCR)
C-10 Electrical
An electrical contractor places, installs, erects or connects any electrical wires, xtures,
appliances, apparatus, raceways, conduits, solar photovoltaic cells or any part thereof,
which generate, transmit, transform or utilize electrical energy in any form or for any
purpose. (832.10 CCR)
C-11 Elevator
An elevator contractor fabricates, erects, installs and repairs elevators, including sheave
beams, motors, sheaves, cable and wire rope, guides, cab, counter weights, doors
(including sidewalk elevator doors), automatic and manual controls, signal systems, and
all other devices and equipment associated with the safe and efcient installation and
operation of electrical, hydraulic and manually operated elevators. (832.11 CCR)
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C-12 Earthwork and Paving
An earthwork and paving contractor digs, moves, and places material forming the
surface of the earth, other than water, in such a manner that a cut, ll, excavation, grade,
trench, backll, or tunnel (if incidental thereto) can be executed, including the use of
explosives for these purposes. This classication includes the mixing, fabricating and
placing of paving and any other surfacing materials. (832.12 CCR)
C-13 Fencing
A fencing contractor constructs, erects, alters, or repairs all types of fences, corrals,
runs, railings, cribs, game court enclosures, guard rails and barriers, playground game
equipment, backstops, posts, agpoles, and gates, excluding masonry walls.
(832.13 CCR)
C-15 Flooring and Floor Covering
A ooring and oor covering contractor prepares any surface for the installation of
ooring and oor coverings, and installs carpet, resilient sheet goods, resilient tile, wood
oors and ooring (including the nishing and repairing thereof), and any other materials
established as ooring and oor covering material, except ceramic tile. (832.15 CCR)
C-16 Fire Protection
A re protection contractor lays out, fabricates and installs all types of re protection
systems; including all the equipment associated with these systems, excluding electrical
alarm systems. (832.16 CCR)
C-17 Glazing
A glazing contractor selects, cuts, assembles and/or installs all makes and kinds of
glass, glass work, mirrored glass, and glass substitute materials for glazing; executes the
fabrication and glazing of frames, panels, sashes and doors; and/or installs these items
in any structure. (832.17 CCR)
C-20 Warm-Air Heating, Ventilating and Air-Conditioning
A warm-air heating, ventilating and air-conditioning contractor fabricates, installs,
maintains, services and repairs warm-air heating systems and water heating heat
pumps, complete with warm-air appliances; ventilating systems complete with blowers
and plenum chambers; air-conditioning systems complete with air-conditioning unit;
and the ducts, registers, ues, humidity and thermostatic controls and air lters in
connection with any of these systems. This classication shall include warm-air heating,
ventilating and air-conditioning systems which utilize solar energy. (832.20 CCR)
CSLB DESCRIPTION OF CLASSIFICATIONS
CSLB DESCRIPTION OF CLASSIFICATIONS
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CALIFORNIA CONTRACTORS STATE LICENSE BOARD
C-21 Building Moving/Demolition
A building moving/demolition contractor raises, lowers, cribs, underpins, demolishes and
moves or removes structures, including their foundations. This classication does not
include the alterations, additions, repairs or rehabilitation of the permanently retained
portions of such structures. (832.21 CCR)
C-22 Asbestos Abatement
An asbestos abatement contractor performs abatement, including containment,
encapsulation, or removal, and disposal of asbestos-containing construction materials, as
dened in Section 6501.8 of the Labor Code, in and on buildings and structures. All work
performed and all documentation prepared by an asbestos abatement contractor shall be
done in accordance with regulations and requirements of the Department of Industrial
Relations’ Division of Occupational Safety and Health (DOSH). The C-22 Asbestos
Abatement contractor classication operates as a stand-alone specialty contractor
classication for asbestos abatement work, regardless of any other classication(s)
that may be held by the licensed contractor, and functions within the scope of the
contractor’s DOSH registration. (832.22 and 833 CCR excerpts)
C-23 Ornamental Metal
An ornamental metals contractor assembles, casts, cuts, shapes, stamps, forges, welds,
fabricates and installs, sheet, rolled and cast, brass, bronze, copper, cast iron, wrought
iron, monel metal, stainless steel, steel, and/or any other metal for the architectural
treatment and ornamental decoration of structures. This classication does not include
the work of a sheet metal contractor. (832.23 CCR)
C-27 Landscaping
A landscape contractor constructs, maintains, repairs, installs, or subcontracts the
development of landscape systems and facilities for public and private gardens and other
areas which are designed to aesthetically, architecturally, horticulturally, or functionally
improve the grounds within or surrounding a structure, or a tract or plot of land. In
connection therewith, a landscape contractor prepares and grades plots and areas of
land for the installation of any architectural, horticultural and decorative treatment or
arrangement. (832.27 CCR)
C-28 Lock and Security Equipment
A lock and security equipment contractor evaluates, sets-up, installs, maintains and
repairs all doors and door assemblies, gates, locks and locking devices, panic and re
rated exit devices, manual and automatic operated gate and door closures and releases,
jail and prison locking devices and permanently installed or built-in safes and vaults.
This classication includes but is not limited to master key systems, metal window
guards, security doors, card activated and electronic access control systems for control
equipment, motion and other types of detectors and computer systems for control
and audit of control systems and other associated equipment. Fire alarm systems are
specically not included in this section. (832.28 CCR)
C-29 Masonry
A masonry contractor installs concrete units and baked clay products; concrete, glass
and clay block; natural and manufactured stone; terra cotta; and re brick or other
material for refractory work. This classication includes the fabrication and installation
of masonry component units for structural load bearing and non-load bearing walls for
structures and fences installed with or without mortar; ceramic veneer (not tile) and thin
brick that resembles full brick for facing; paving; and clear waterproong, cleaning and
caulking incidental to masonry construction. (832.29 CCR)
C-31 Construction Zone Trafc Control
A construction zone trafc control contractor prepares or removes lane closures,
agging, or trafc diversions, utilizing portable devices, such as cones, delineators,
barricades, sign stands, ashing beacons, ashing arrow trailers, and changeable
message signs, on roadways, including, but not limited to, public streets, highways, or
any public conveyance. (832.31 CCR)
C-32 Parking and Highway Improvement
A parking and highway improvement contractor applies and installs protective
coatings, vehicle stops, guard rails and mechanical devices, directional lines, buttons,
markers, signs and arrows on the horizontal surface of any game court, parking facility,
airport, highway or roadway constructed of concrete, asphalt or similar material. This
classication includes the surface preparatory work necessary for the application of
protective coatings but does not include the re-paving of these surfaces. (832.32 CCR)
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CSLB DESCRIPTION OF CLASSIFICATIONS
CSLB DESCRIPTION OF CLASSIFICATIONS
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CALIFORNIA CONTRACTORS STATE LICENSE BOARD
C-33 Painting and Decorating
A painting and decorating contractor prepares by scraping, sandblasting or other means and
applies any of the following: paints, papers, textures, fabrics, pigments, oils, turpentines,
japans, driers, thinners, varnishes, shellacs, stains, llers, waxes, adhesives, water and any
other vehicles, mediums and materials which adhere by evaporation and may be mixed,
used and applied to the surfaces of structures and the appurtenances thereto for purposes
of decorating, protecting, reproong and waterproong. (832.33 CCR)
C-34 Pipeline
A pipeline contractor fabricates and installs pipelines for the conveyance of uids, such
as water, gas, or petroleum, or for the containment or protection of any other material,
including the application of protective coatings or systems and the trenching, boring,
shoring, backlling, compacting, paving and surfacing necessary to complete the
installation of such pipelines. (832.34 CCR)
C-35 Lathing and Plastering
(a) A lathing and plastering contractor coats surfaces with a mixture of sand, gypsum
plaster, quick-lime or hydrated lime and water, or sand and cement and water, or
a combination of such other materials that create a permanent coating, including
coatings for the purpose of soundproong and reproong. These coatings
are applied with a plasterer’s trowel or sprayed over any surface which offers a
mechanical means for the support of such coating, and will adhere by suction. This
contractor also installs lath (including metal studs) or any other material prepared or
manufactured to provide a base or bond for such coating.
(b) A lathing and plastering contractor also applies and afxes wood and metal lath, or
any other material prepared or manufactured to provide key or suction bases for the
support of plaster coatings. This classication includes the channel work and metal
studs for the support of metal or any other lathing material and for solid plaster
partitions. (832.35 CCR)
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C-36 Plumbing
A plumbing contractor provides a means for a supply of safe water, ample in volume and
of suitable temperature for the purpose intended and the proper disposal of uid waste
from the premises in all structures and xed works. This classication includes but is not
limited to:
(a) Complete removal of waste from the premises or the construction and connection
of on-site waste disposal systems;
(b) Piping, storage tanks and venting for a safe and adequate supply of gases and liquids
for any purpose, including vacuum, compressed air and gases for medical, dental,
commercial and industrial uses;
(c) All gas appliances, ues and gas connections for all systems including suspended
space heating units. (This does not include forced warm air units.);
(d) Water and gas piping from the property owner’s side of the utility meter to the
structure or xed works;
(e) Installation of any type of equipment to heat water or uids, to a temperature
suitable for the purposes listed in this section, including the installation of solar
equipment for this purpose; and
(f) The maintenance and replacement of all items described above and all health and
safety devices such as, but not limited to, gas earthquake valves, gas control valves,
back ow preventers, water conditioning equipment and regulating valves.
(832.36 CCR)
C-38 Refrigeration
A refrigeration contractor constructs, fabricates, erects, installs, maintains, services and
repairs refrigerators, refrigerated rooms, and insulated refrigerated spaces, temperature
insulation, air-conditioning units, ducts, blowers, registers, humidity and thermostatic
controls for the control of air, liquid and/or gas temperatures below fty degrees
Fahrenheit (50º), or ten degrees Celsius (10º). (832.38 CCR)
C-39 Roong
A roong contractor installs products and repairs surfaces that seal, waterproof and
weatherproof structures. This work is performed to prevent water or its derivatives,
compounds or solids from penetrating such protection and gaining access to material
or space beyond. In the course of this work, the contractor examines and/or prepares
surfaces and uses the following material: asphaltum, pitch, tar, felt, glass fabric, urethane
foam, metal roong systems, ax, shakes, shingles, roof tile, slate or any other roong,
waterproong or membrane material(s) or a combination thereof. (832.39 CCR)
CSLB DESCRIPTION OF CLASSIFICATIONS
C-42 Sanitation System
A sanitation system contractor fabricates and installs cesspools, septic tanks, storm
drains, and other sewage disposal and drain structures. This classication includes
the laying of cast iron, steel, concrete, vitreous and non-vitreous pipe and any other
hardware associated with these systems. (832.42 CCR)
C-43 Sheet Metal
A sheet metal contractor selects, cuts, shapes, fabricates and installs sheet metal such
as cornices, ashings, gutters, leaders, pans, kitchen equipment, duct work (including
insulation, patented chimneys, metal ues, metal roong systems and any other
installations requiring sheet metal). (832.43 CCR)
C-45 Sign
A sign contractor fabricates, installs, and erects electrical signs, including the wiring of
such electrical signs, and non-electrical signs, including but not limited to: post or pole
supported signs, signs attached to structures, painted wall signs, and modications to
existing signs. (832.45 CCR)
C-46 Solar
A solar contractor installs, modies, maintains, and repairs thermal and photovoltaic
solar energy systems. A licensee classied in this section shall not undertake or perform
building or construction trades, crafts, or skills, except when required to install a thermal
or photovoltaic solar energy system. (832.46 CCR)
Please see page 23 for additional information on contractor classications
authorized to perform solar projects.
C-47 General Manufactured Housing
(a) A general manufactured housing contractor installs, alters, repairs, or prepares for
moving any type of manufactured home as dened in Section 18007 of the Health
and Safety Code, any type of mobile home as dened in Section 18008 of the Health
and Safety Code, and any type of multifamily manufactured home as dened in
Section 18008.7 of the Health and Safety Code, including the accessory buildings
or structures, and the foundations. A manufactured home does not include any
recreational vehicle, commercial coach, or factory-built housing as dened in Section
19971 of the Health and Safety Code.
(b) A general manufactured housing contractor may provide utility services on a single
family individual site placement. Utility services mean the connection of gas, water,
sewer, and electrical utilities to the home. (832.47 CCR)
CSLB DESCRIPTION OF CLASSIFICATIONS
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CALIFORNIA CONTRACTORS STATE LICENSE BOARD
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C-50 Reinforcing Steel
A reinforcing steel contractor fabricates, places and ties steel mesh or steel reinforcing
bars (rods), of any prole, perimeter, or cross-section that are or may be used to
reinforce concrete structures. (832.50 CCR)
C-51 Structural Steel
A structural steel contractor fabricates and erects structural steel shapes and plates, of
any prole, perimeter or cross-section that are or may be used as structural members
for buildings and structures, including the riveting, welding, rigging, and metal roong
systems necessary to perform this work. (832.51 CCR)
C-53 Swimming Pool
A swimming pool contractor constructs swimming pools, spas or hot tubs, including
installation of solar heating equipment using those trades or skills necessary for such
construction. (832.53 CCR)
C-54 Ceramic and Mosaic Tile
A ceramic and mosaic tile contractor prepares surfaces as necessary and installs glazed
wall, ceramic, mosaic, quarry, paver, faience, glass mosaic and stone tiles; thin tile
that resembles full brick, natural or simulated stone slabs for bathtubs, showers and
horizontal surfaces inside of buildings, or any tile units set in the traditional or innovative
tile methods, excluding hollow or structural partition tile. (832.54 CCR)
C-55 Water Conditioning
A water conditioning contractor installs water conditioning equipment with the use
of only such pipe and ttings as are necessary to connect the water conditioning
equipment to the water supply system and to by-pass all those parts of the water supply
system within the premises from which conditioned water is to be excluded.
(832.55 CCR)
C-57 Well Drilling
A well drilling contractor installs and repairs water wells and pumps by boring, drilling,
excavating, casing, cementing and cleaning to provide a supply of uncontaminated
water. (832.57 CCR)
C-60 Welding
A welding contractor causes metal to become permanently attached, joined and
fabricated by the use of gases and electrical energy, which creates temperatures of
sufcient heat to perform this work. (832.60 CCR)
CSLB DESCRIPTION OF CLASSIFICATIONS
CSLB DESCRIPTION OF CLASSIFICATIONS
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CALIFORNIA CONTRACTORS STATE LICENSE BOARD
C-61 LIMITED SPECIALTIES
California Code of Regulations Division 8,
Title 16, Article 3. Classication
(a) Limited specialty is a specialty contractor classication limited to a eld and scope
of operations of specialty contracting for which an applicant is qualied other than
any of the specialty contractor classications listed and dened in this article.
(b) An applicant classied and licensed in the classication Limited Specialty shall
conne activities as a contractor to that eld or elds and scope of operations
set forth in the application and accepted by the Registrar or to that permitted by
Section 831.
(c) Upon issuance of a C-61 license, the Registrar shall endorse upon the face of the
original license certicate the eld and scope of operations in which the licensee
has demonstrated qualications.
(d) A specialty contractor, other than a C-61 contractor, may perform work within
the eld and scope of the operations of Classication C-61, provided the work is
consistent with the established usage and procedure in the construction industry
and is related to the specialty contractors classication. (832.61 CCR)
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C-61 LIMITED SPECIALTY CLASSIFICATIONS
CSLB lists the C-61 classications in “D” subcategories for administrative tracking.
Denitions for the “D” subcategories were developed by staff and approved by
the Board.
D-03 Awnings
An awning contractor installs, modies or repairs aluminum, metal, vinyl or canvas
awnings and patio covers. These installations can be either freestanding or attached
to a structure. Patio enclosures or carports are not included in this classication.
D-04 Central Vacuum Systems
A central vacuum systems contractor installs, modies, maintains or repairs central
vacuum systems, pneumatic tube dispatching systems or any other type of pipeline
which operates systems of reduced pressure for any purpose.
D-06 Concrete-Related Services
A concrete-related services contractor installs reusable steel concrete form sections or
interlocking precast pavers; performs post-tensioning work, concrete sawing, breaking,
curing, oor hardening treatment, coloring concrete, concrete restoration, coring work
or operates a concrete pumping service; and also includes the application of gunite, but
does not include the installation of reinforcing steel.
D-09 Drilling, Blasting and Oil Field Work
A drilling, blasting and oil eld work contractor does core and post hole drilling, horizontal
drilling (no piping) and drilling for placement of charges and performing blasting work;
performs drilling for site dewatering, oil well drilling and other oil eld-related specialty
work. (DOES NOT INCLUDE WATER WELL DRILLING)
D-10 Elevated Floors
An elevated oors contractor installs wood or metal framed elevated computer ooring
systems. This work does not include the construction of mezzanines.
CSLB DESCRIPTION OF CLASSIFICATIONS
CSLB DESCRIPTION OF CLASSIFICATIONS
16
CALIFORNIA CONTRACTORS STATE LICENSE BOARD
D-12 Synthetic Products
A synthetic products contractor installs:
(a) Synthetic counter tops and wall coverings; berglass, plastic, vinyl and epoxy
products; plastic tile board and decorative art work; and synthetic turf;
(b) Bathtub and enamel renishing, resin and epoxy application, and synthetic caulking
and sealants;
(c) Reservoir liners, vinyl swimming pool relining, pier piling wrap, and rodent guards; and
(d) PVC piping systems for irrigation and drainage; and subsurface irrigation drip systems.
D-16 Hardware, Locks and Safes
A hardware, locks and safes contractor installs, modies or repairs power and/or
manually activated door and window locks with related hardware, built-in safes,
and vaults.
D-21 Machinery and Pumps
A machinery and pumps contractor installs, removes, modies or repairs:
(a) Pumps; conveyors; cranes; dock levelers; various hoisting and material handling
equipment; and meters;
(b) Dumb waiters; handicap lifting and assistance equipment; automated speed-rail
trolley systems for garment hanging; and
(c) Automatic car washing racks and auto body paint nishing booth equipment.
NOTE: Construction of buildings and/or roof structures for this equipment is not included.
D-24 Metal Products
A metal products contractor installs, modies or repairs the following:
(a) Metal cabinets, lockers, modular storage structures, mail chutes, cable racks; and
aluminum or vinyl storm doors and windows;
(b) Metal wall tiles; aluminum fascia covers; and metal gutters; and
(c) Aluminum studs and trusses; metal railings and turnstiles; metal prison cell
accessories such as welded-to-structure cell furniture; grills; and cabinets.
D-28 Doors, Gates and Activating Devices
A doors, gates and activating devices contractor installs, modies or repairs all types of
residential, commercial or industrial doors including overhead or sliding door assemblies.
This includes but is not limited to: wood and screen doors, metal-clad doors, glass
sliding/ stationary doors and frames, automatic revolving doors, hospital cubical doors
and related installations; power-activated doors, gates, movable sun shades/shutters;
card-activated equipment and other access control device; and any low-voltage electronic
or manually operated door hardware/device.
D-29 Paperhanging
A paperhanging contractor applies all types and varieties of decorative wall coverings,
except painting or paneling, including paper and vinyl goods, cork, burlap and carpet-type
wall coverings.
D-30 Pile Driving/Pressure Foundation Jacking
A pile driving/pressure foundation jacking contractor provides a pile driving and/or
caisson drilling or auger service. This work also includes but is not limited to the injection
of concrete or mortar into foundations for stabilization purposes.
D-31 Pole Installation and Maintenance
A pole installation and maintenance contractor installs wood or precast poles to support
the wiring or cable that is installed by others or installs and maintains ag poles.
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CSLB DESCRIPTION OF CLASSIFICATIONS
CSLB DESCRIPTION OF CLASSIFICATIONS
18
CALIFORNIA CONTRACTORS STATE LICENSE BOARD
D-34 Prefabricated Equipment
A prefabricated equipment contractor performs installation of prefabricated products/
equipment, including but not limited to the following:
(a) Theater stage equipment, school classroom equipment, playground equipment,
bleacher bench/seat component parts (no installation or renovation of any supporting
or structural member); store xtures, and display cases (either prefabricated or
modular form); all forms and types of toilet/shower room partitions/accessories; and
prefabricated closet systems.
(b) Laboratory and medical equipment, and dust-collecting systems; factory-built replaces
and accessories (no masonry facing); major appliance installations and ventilating hoods
in connection with existing fuel and energy lines which are installed by others.
(c) Bus stop shelters, prefabricated phone booths; prefabricated sound proof
environmental clean rooms; panelized refrigerated walk-in boxes (not to include the
work of refrigeration contractor); all types of modular ofce, institutional or home
improvement systems including, but not limited to, all types of pre-nished and/or
UL listed pre-wired wall panels.
D-35 Pool and Spa Maintenance
A pool and spa maintenance contractor installs, replaces or repairs pool motors, pumps,
lters, gas heaters and any above-ground piping in connection with pools; includes
electrical switches, breakers, pool lights, diving boards, existing solar systems that heat
pools, pool and spa acid baths, and applies vinyl liners to existing surfaces.
D-38 Sand and Water Blasting
A sand and water blasting contractor uses the force of compressed air in conjunction
with abrasive materials or water to clean or prepare surfaces for any protective,
decorative and/or functional treatment.
D-39 Scaffolding
A scaffolding contractor erects metal or wood scaffolding including temporary sidewalk
sheltered construction work barricades.
19
D-40 Service Station Equipment and Maintenance
A service station maintenance contractor installs, repairs, maintains or calibrates
monitoring equipment for underground fuel storage tanks up to 20,000 gallons which
have been or are to be used for dispensing gasoline, diesel fuel, waste oil or kerosene
(no chemicals). This includes the installation of vapor probes in back ll areas of the
tanks and any associated calibration work, including but not limited to the testing and
adjustment of leak detection and vapor recovery equipment, such as automatic tank
gauges, leak line detectors, vapor recovery lines, and in-station diagnostics.
Note for Those Holding a License with this Classication Issued Prior to
January 18, 2001: You may perform all the work as described above, as well as
install and/or remove the underground fuel storage tanks themselves, including the
installation and/or removal of all incidental tank related piping and electrical work,
and the installation of auto hoisting equipment, grease racks, compressors, air hoses,
and other service station equipment.
D-41 Siding and Decking
A siding and decking contractor applies or installs all types of exterior siding including
wood, wood products, vinyl, aluminum and metal siding to new or existing buildings.
This contractor also constructs wooden decks and related handrails. This work shall not
include the construction or installation of covers or enclosures of any kind.
D-42 Non-Electrical Sign Installation
A non-electrical sign installation contractor fabricates and installs all types of
nonelectrical signs including, but not limited to: post or pole-supported signs, signs
attached to structures, painted wall signs, and modications to existing signs.
D-49 Tree Service
A tree service contractor prunes trees, removes trees, limbs or stumps (including
grinding) and engages in tree or limb guying.
D-50 Suspended Ceilings
A suspended ceilings contractor installs, modies or repairs all types of suspended
ceilings including, but not limited to: lay-in-grid and other types of systems involving
solid, perforated or translucent ceiling panels (no electrical work).
CSLB DESCRIPTION OF CLASSIFICATIONS
CSLB DESCRIPTION OF CLASSIFICATIONS
20
CALIFORNIA CONTRACTORS STATE LICENSE BOARD
D-52 Window Coverings
A window coverings contractor installs or applies decorative, architectural/functional
window/glass treatment or covering products including, but not limited to: all types of
materials and fabrics that make up louvers, shutters, Venetian and mini-blinds; residential
or commercial draperies and screens; expanded metal window and door guards; plastic
lm window treatment and/or any other window treatment applied for temperature
control or as a screening device.
D-53 Wood Tanks
A wood tanks contractor erects or repairs elevated wooden storage tanks and related
cooling towers. (Hot tubs are not included.)
D-56 Trenching
A trenching contractor is limited to trenching only for foundations, pipelines, conduit and
related trenching work.
D-59 Hydroseed Spraying
A hydroseed spraying contractor applies seeds through any liquid media to any type of
surface that has been prepared or contoured by others.
D-62 Air and Water Balancing
An air and water balancing contractor installs any device and performs any work related
to providing a specied ow of air in all types of existing heating and cooling systems
and/or related to providing a specied ow of water in water piping systems.
D-63 Construction Cleanup
A construction cleanup contractor cleans up and/or removes from building grounds or
structures any debris resultant from any construction project including, but not limited
to: concrete, dirt, scrap lumber, plaster, drywall, any paint or adhesive products from
windows, oors, ceramic tile and bathroom xtures.
D-64 Non-specialized
A non-specialized contractor installs, modies, maintains and repairs new products and/
or new installations which are not dened in any section herein or dened in any license
classication authorized by the Board under Chapter 9, Division 3 of the Business and
Professions Code (Contractors License Law).
21
D-65 Weatherization and Energy Conservation
A weatherization and energy conservation contractor installs, removes, modies or
repairs or provides maintenance services for energy conservation products limited to the
following: door and window weather stripping, caulking, water heater pipe wrap, water
heater blankets, insulating gaskets for electrical outlet covers, shade screens, shutters,
storm windows, tinted window lm, residential water ow restricting devices installed
onto existing xtures. (DOES NOT INCLUDE INSULATION, GLAZING OR HEATING
VENTILATING AND AIR-CONDITIONING WORK)
CSLB DESCRIPTION OF CLASSIFICATIONS
22
CALIFORNIA CONTRACTORS STATE LICENSE BOARD
CSLB no longer issues licenses in these C-61 limited specialty subcategories and cannot
accept new applications for them. However, some CSLB licensees may still hold a valid,
current, and renewable license in these subcategories.
D-05 Communication Equipment
(Converted to C-7)
D-07 Conveyors-Cranes
(Now under D-21)
D-08 Doors and Door Services
(Now under D-28)
D-13 Fire Extinguisher Systems
(Now under C-16)
D-17 Industrial Insulation
(Now under C-2)
D-19 Land Clearing
(Now under C-12 or A” if license is required)
D-20 Lead Burning and Fabrication
(Now under D-64)
D-22 Marble
(Now under C-29)
D-23 Medical Gas Systems
(Now under C-36)
D-25 Mirrors and Fixed Glass
(Now under C-17)
D-27 Movable Partitions
(Now under D-34)
D-32 Power Nailing and Fastening
(Now under D-64)
D-33 Precast Concrete Stairs
(Now under C-23)
D-36 Rigging and Rig Building
(Now under “A”)
D-37 Safes and Vaults
(Now under D-16)
D-43 Soil Grouting
(Now under C-32, C-12 or A”)
D-44 Sprinklers
(Now under D-12)
D-45 Staff and Stone
(Now under C-29)
D-46 Steeple Jack Work
(Under relevant class)
D-47 Tennis Court Surfacing
(Now under C-12 or A”)
D-48 Theater and School Equipment
(Now under D-34)
D-51 Waterproong and Weatherproong
(Now under C-39, C-33, C-29 or C-54)
D-54 Rockscaping
(Now under C-15 or C-27)
D-55 Blasting
(Now under C-12 or A”)
D-58 Residential Floating Docks
(Now under “A”)
D-60 Striping
(Now under C-32)
OBSOLETE C-61 LIMITED SPECIALITY CLASSIFICATION
SUBCATEGORIES
23
Contractor Classications
Authorized by CSLB to
Perform Solar Energy Projects
Renewable energy sources have expanded and become a California priority. CSLB
classications identied below are approved to perform solar projects; any license
classication not listed below does not have authorization to perform solar construction
or installation.
A – General Engineering contractors are authorized to perform active solar
energy projects that require specialized engineering.
“B”– General Building contractors are authorized to perform active solar energy projects
within the denition of BPC section 7057, since an active solar energy system constitutes
the use of two unrelated building trades or crafts as required by Section 7057.*
SPECIALTY CLASSIFICATIONS
C-4 – Boiler, Hot-Water Heating and Steam Fitting contractors are authorized
to perform projects that include solar heating equipment associated with systems
authorized by this classication.
C-10 – Electrical contractors are authorized to perform any solar projects which
generate, transmit, transform or utilize electrical energy in any form for any purpose.
C-36 – Plumbing contractors are authorized to perform any project using solar
equipment to heat water or uids to a suitable temperature.
C-46 – Solar contractors install, modify, maintain, and repair thermal and photovoltaic
solar energy systems. A licensee classied in this section shall not undertake or perform
building or construction trades, crafts, or skills, except when required to install a thermal
or photovoltaic solar energy system.
C-53 – Swimming Pool contractors are authorized to include the installation of solar
heating in swimming pool projects.
CSLB DESCRIPTION OF CLASSIFICATIONS
24
CALIFORNIA CONTRACTORS STATE LICENSE BOARD
Description of Classications 13P-033/0721
Check with your local utility company, the California Public Utilities Commission, or
the California Energy Commission about authorized contractor classications and any
certication(s) that may be necessary to participate in local, state, or federal energy
rebate programs. Also, be aware of the rebate program expiration dates.
* § 7057 General Building Contractor
(a) Except as provided in this section, a general building contractor is a contractor whose principal contracting
business is 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, requiring in its construction the use
of at least two unrelated building trades or crafts, or to do or superintend the whole or any part thereof.
www.cslb.ca.gov
CONTRACTORS STATE LICENSE BOARD
P.O. Box 26000
Sacramento, CA 95826-0026
800.321.CSLB (2752)
www.cslb.ca.gov
CheckTheLicenseFirst.com
13P-033/0721