Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-200A - Contractor certificate of registration renewals - Security - Insurance › Section 296-200A-016 - What are the definitions of the specialty contractor classifications for the purpose of contractor registration only?

Current through Register Vol. 24-14, July 15, 2024
(1)
"Appliances, equipment" --
A
			 contractor in this specialty installs or replaces appliances where minimal gas
			 and water connection are required, such as a refrigerator with an icemaker, gas
			 clothes dryer, gas cook top, gas oven or other similar appliances and only from
			 the existing shut off at wall or floor to the appliance or an appliance that
			 becomes a fixed part of a structure (use of flex for the connection is limited
			 to six feet or less).
The installation or replacement of dishwashers,
			 hot water tanks, and garbage disposals requires a plumber certification per
			 chapter 18.106 RCW and/or an electrical license per
			 chapter
			 19.28
			 RCW.
(2)
"Asbestos
			 and lead" --
A contractor in this specialty cleans, handles, repairs,
			 removes, encapsulates, encloses, hauls and disposes of paper or hard block
			 insulation on hot water piping, heating ducts, or as molded pipe fitting
			 insulation and joint compounds on furnaces or floor tiles, sheet flooring,
			 ceiling tiles and acoustical (stucco) finishes or as wall and attic insulation
			 materials, or for shingles or siding material and cement pipes for interior or
			 exterior asbestos or lead products.
All asbestos contractors shall
			 adhere to state (DOSH) and/or federal (OSHA) standards regulating all forms of
			 this hazardous material. Asbestos certification per chapter 296-65 WAC is
			 required. Lead abatement certification for workers may be required per chapter
			 70.103 RCW.
(3)
"Awnings, canopies, patio covers and exterior screens" --
A
			 contractor in this specialty installs and repairs window awnings, door hoods,
			 exterior screens, freestanding or attached canopies, and patio covers
			 constructed of metal, fabric, fiberglass, and plastic.
(4)
"Boiler, steam fitting, process
			 piping" --
A contractor in this specialty installs, services and repairs
			 power boiler installations and hot water heating systems, including fire-tube
			 and water-tube steel power boilers and hot water heating low pressure boilers,
			 steam fitting and piping, fittings, valves, gauges, pumps, radiators,
			 convectors, hydraulics, fuel oil tanks and fuel oil lines. Also includes
			 chimney connections, flues, refractories, burners, thermal insulation, and
			 accessories, fuel and nonpotable water lines from source of supply to boilers;
			 process and specialty piping and related equipment, pneumatic and electrical
			 control, sheet insulation and all other equipment, including solar heating
			 equipment associated with these systems.
Work in this specialty may
			 also require plumber certification per chapter 18.106 RCW and/or an electrical
			 license per
			 chapter
			 19.28
			 RCW.
(5)
"Cabinets,
			 millwork and finish carpentry" --
A contractor in this specialty
			 installs cabinets, countertop frames, cases, sashes, doors (including
			 hardware), trims, nonbearing partitions, closets and other items of finish
			 carpentry by cutting, surfacing, joining, gluing, and framing wood and wood
			 products. Also places, erects, fabricates and finishes such cabinets and
			 millwork in structures, including the cutting, framing, installation and
			 finishing of wood and wood products, such as prefabricated cabinets and
			 millwork.
(6)
"Central vacuum
			 systems" --
A contractor in this specialty installs, modifies, or
			 repairs central vacuum systems, pneumatic tube dispatching systems or any other
			 type of pipeline which operates systems of reduced pressure for industrial and
			 residential cleaning.
(This specialty does not include any medical or
			 hazardous waste systems.)
(7)
"Closets" --
A contractor in
			 this specialty installs, repairs and maintains the lateral or horizontal
			 shelving systems, racks, rails, or drawers involved in a closet or storage
			 system.
(8)
"Commercial/industrial refrigeration" --
A contractor in this
			 specialty installs, alters, and repairs refrigeration equipment and systems
			 used for processing, storage, and display of food products and other perishable
			 commodities for the control of air temperatures below fifty degrees Fahrenheit.
			 This allows construction, fabrication, erection, installation, service,
			 maintenance and repairs of devices, machinery and units, including
			 refrigerators, refrigerated rooms, air-conditioning units and insulated spaces.
			 Also includes installation of any related insulation, ducts, blowers,
			 registers, controls over humidity and thermostatic controls for the control of
			 air, liquid, and/or gas temperatures below fifty degrees Fahrenheit or ten
			 degrees Celsius.
Work in this specialty may also require an electrical
			 license per
			 chapter
			 19.28
			 RCW.
(9)
"Concrete"
			 --
A contractor in this specialty completes all work in connection with
			 the processing 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. The construction, centering, and
			 assembling of forms, molds, slip forms, and pans.
Reregistration is not
			 required for companies who provide concrete pumping services or delivery of
			 materials only.
(10)
"Construction clean-up" --
A contractor in this specialty cleans
			 up and/or removes from buildings, grounds or structures any debris resulting
			 from any construction project including but not limited to: Concrete, plaster,
			 drywall, any paint or adhesive products from windows, floors, ceramic tile and
			 bathroom fixtures.
(Registration is not required for janitorial
			 services, i.e., at final cleaning.)
(11)
"Demolitions and
			 salvage"--
A contractor in this specialty is involved in the wrecking of
			 existing structures intended for disposal or salvage, by use of tools,
			 equipment or explosives, and the raising, cribbing and underpinning of
			 buildings and other structures so the alterations, repairs and temporary
			 structures may be constructed under the retained and undisturbed portion of the
			 building or other structures. Includes the erection of temporary ramps,
			 barricades, and pedestrian walkways when required for demolition/wrecking
			 and/or salvage projects.
(This specialty does not include the
			 alterations, additions, repairs or rehabilitation of the permanently retained
			 portions of such structures.)
(12)
"Doors, gates and activating
			 devices" --
A contractor in this specialty installs, modifies or repairs
			 all types of residential, commercial or industrial doors including 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.
Work
			 in this specialty may also require an electrical license per
			 chapter
			 19.28
			 RCW.
(13)
"Drain
			 cleaning and snaking"--
A contractor in this specialty can perform camera
			 examination, cleaning or snaking of building drainage and vent pipes and/or
			 sewer pipe. Nothing in this specialty is intended to waive any plumbing
			 certification requirements of chapter 18.106 RCW or any local enforcement
			 agency code provisions or allow for the removal, installation or replacement of
			 any damaged plumbing parts or fixtures.
(14)
"Drilling, blasting and soil
			 sampling" --
A contractor in this specialty does core and post hole
			 drilling, horizontal drilling (no piping) and drilling for placement of charges
			 and performing blasting work and performs soil sampling.
(Does not
			 include water well drilling.) Work with explosives requires licensing per
			 chapter 70.74 RCW.
(15)
"Drywall" --
A contractor in this specialty lays out and installs
			 gypsum wall board and gypsum wall board assemblies including nonstructural
			 metal framing members, and performs the taping, primer and texturing operations
			 including the application of compounds that adhere to wall board to produce a
			 continuous smooth or textured surface. Includes interior lath and plaster
			 repair.
(16)
"Electrical" --
Please see
			 chapter
			 19.28 RCW.
(17)
"Elevator" --
A contractor
			 in this specialty installs, repairs, alters, relocates, demolishes and
			 maintains elevators and other conveyances, including all associated equipment
			 and equipment associated with the safe and efficient installation and operation
			 of electrical, hydraulic and manual operated elevators.
Work in this
			 specialty may also require elevator licensing per chapter 70.78 RCW and/or an
			 electrical license per
			 chapter
			 19.28
			 RCW.
(18)
"Excavation, grading and land clearing" --
A contractor in this
			 specialty digs, moves and alters materials forming the surface of the earth by
			 digging, horizontal boring, trenching, grading, or compacting the material for
			 a cut, fill, grade, or trench, with hand and power tools, machines and
			 explosives. Included is the placement of shoring, the oiling of base materials,
			 and incidental blasting and drilling.
(This specialty excludes
			 excavating for water, gas, and oil wells.) Use of explosives requires licensing
			 per chapter 70.74 RCW.
(19)
"Fencing" --
A contractor
			 in this specialty constructs, erects, alters, or repairs all types of fences,
			 corrals, runs, railings, cribs, game court enclosures (excludes roof), guard
			 rails and barriers, backstops, posts, flagpoles, and gates. This includes
			 installing, cutting, shaping, fabricating and repair of metal and wood fencing,
			 cattle guards and supplemental materials.
(This specialty excludes
			 masonry walls.) Work in this specialty may also require an electrical license
			 per chapter 19.28
			 RCW.
(20)
"Fireproofing and coating" --
A contractor in this specialty
			 applies by industry accepted practices independently qualified fireproofing and
			 coating materials that are fire resistant.
(21)
"Fire protection" --
A
			 contractor in this specialty lays out, fabricates, repairs and installs all
			 types of fire protection systems, including all the equipment associated with
			 these systems using water, steam, gas or chemicals. 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.
Work in this specialty may also
			 require an electrical license per
			 chapter
			 19.28 RCW and/or
			 fire-protection licensing.
(22)
"Floor covering and counter tops"
			 --
A contractor in this specialty installs, repairs or replaces floor
			 covering materials and related accessories including preparation of the surface
			 to be covered. Included are: Linoleum, carpets, carpet backings and pads, and
			 materials manufactured of asphalt, wood, vinyl, laminates, rubber and material
			 common to the industry installed for sanitary and decorative purposes for
			 nonstructural bearing interior and exterior use. Excludes work outlined in
			 subsection (56) of this section.
Work in this specialty may also
			 require plumber certification per chapter 18.106 RCW and/or an electrical
			 license per
			 chapter
			 19.28
			 RCW.
(23)
"Framing
			 and rough carpentry" --
A contractor in this specialty 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: Subflooring, siding (flat work only), decks,
			 exterior staircases, new exterior doors and railings, fascia, roof decking,
			 truss members and rafters, and sheathing using carpenter hand tools and power
			 tools.
(24)
"Glass and
			 glazing" --
A contractor in this specialty selects, cuts, assembles,
			 and/or installs, replaces and repairs all makes and kinds of glass, glass work,
			 mirrored glass, and glass substitute materials for glazing; executes the
			 installation and glazing of frames, panels, sashes, skylights and glass doors;
			 and/or installs these items in any structure. Also includes the installation of
			 steel and aluminum glass holding members, glass products, and related hardware,
			 as well as standard methods of weatherproofing, caulking, glazing, sealants,
			 and adhesives.
(25)
"Gutters
			 and downspouts" --
A contractor in this specialty installs, repairs, and
			 maintains gutters and exterior downspouts of metal, wood, and plastic and
			 channel devices common to the industry, for the use of water run-off of the
			 exterior of a building.
(26)
"Handyman" --
A contractor in this specialty must be an individual
			 who does all work personally without employees or other specialty contractors.
			 A handyman may perform more than one unrelated specialty trade or craft
			 provided they do all work themselves. All work shall be limited to minor and
			 casual work of existing residential maintenance and repair with a total dollar
			 value of time and materials under two thousand dollars. Work requiring a
			 building permit may not be done by this specialty. If the registered contractor
			 is a corporation or limited liability company (LLC), one person must be
			 identified as a handyman.
Work in this specialty may also require
			 plumber certification per chapter 18.106 RCW and/or an electrical license per
			 chapter
			 19.28
			 RCW.
(27)
"House
			 moving" --
A contractor in this specialty raises, lowers, cribs,
			 underpins, and moves structures, including their foundations.
(This
			 specialty does not include the alterations, additions, repairs or
			 rehabilitation of such structures.)
(28)
"Heating, ventilation,
			 air-conditioning and refrigeration (HVAC/R)" --
A contractor in this
			 specialty fabricates, installs, services, and maintains equipment for the
			 purpose of heating and cooling of indoor air. Systems may include the following
			 areas of work and related equipment using industry accepted materials: Duct
			 work; air filtering devices; water treatment devices; pneumatic controls;
			 control piping; thermal and acoustical insulation; vibration isolation
			 materials and devices; liquid fuel (propane) piping and tanks; gas piping from
			 service connection to equipment it serves; and stainless steel kitchen systems.
			 Includes the testing and balancing of the air handling systems. Also includes
			 systems that utilize solar energy.
Work in this specialty may also
			 require electrical licensing per
			 chapter
			 19.28 RCW and/or plumber
			 certification per chapter 18.106 RCW.
(29)
"Industrial equipment/machines" --
A contractor in this specialty installs all industrial machinery such as
			 generators, compressors and processors which are bolted or otherwise attached
			 so as to be permanently affixed to a structure.
Work in this specialty
			 may also require an electrical license per
			 chapter
			 19.28 RCW and/or plumber
			 certification per chapter 18.106 RCW.
(30)
"Institutional equipment,
			 stationary furniture, lab tables, lockers" --
A contractor in this
			 specialty installs, alters and repairs equipment and furniture that become a
			 fixed part of the structure, such as stationary desks, lockers, chalkboards,
			 shelving, storage, seats in an auditorium (including stationary bleachers) and
			 equipment used in a stage or gymnasium. Work includes the installation,
			 alteration and repair of institutional kitchen equipment and laboratory
			 equipment, such as stationary counters and tables, shelving partitions, and
			 such other equipment as is generally accepted for use as commercial building
			 accessory.
(31)
"Insulation
			 and acoustical" --
A contractor in this specialty installs, alters, and
			 repairs insulation materials used for the nonmechanical control of heat, sound,
			 and moisture for use in the construction of structures and equipment. Work
			 includes installation methods and devices such as supports, fastening systems,
			 adhesives, mastics, plastics, weather-stripping and material used for the
			 preparation of insulation work and common to the industry. Also includes
			 application and installation of materials to protect or finish insulated
			 surfaces.
(32)
"Irrigation
			 sprinkler systems" --
A contractor in this specialty installs, repairs,
			 and maintains sprinkler systems to distribute water for the purpose of
			 irrigation, dust and soil erosion control using equipment, materials, and
			 fittings common to the industry. Connections to potable water lines,
			 installation of backflow prevention devices for nonpotable water, installation
			 of hose bibs and installation of service lines from source of supply are
			 permitted only when they are an integral part of the sprinkler system and
			 outside a building.
The use of pumps to draw or boost the pressure from
			 any source of water that are used on a residential sprinkler system or for
			 irrigation on a farm require plumber certification per chapter 18.106 RCW
			 and/or an electrical license per
			 chapter
			 19.28 RCW. (If both the
			 electrical and plumbing trades are pursued this specialty is not
			 allowed.)
(33)
"Landscaping"--
A contractor in this specialty constructs,
			 maintains, repairs, installs and develops landscape systems and facilities for
			 public and private gardens and other areas which are designed to aesthetically,
			 architecturally, horticulturally, or functionally improve the ground within or
			 surrounding a structure or tract or plot of land. Also prepares and grades
			 plots; treats, conditions, prepares, and installs topsoil; performs hydroseed
			 spraying; and plants all decorative vegetation. Landscaping includes
			 installation of nonload bearing slabs, walkways and areas using concrete,
			 brick, stone, or gravel; decorative wooden decks; garden walls, fences and
			 screens up to six feet in height; and all other materials and equipment common
			 to the industry. This specialty includes installation of residential lawn
			 sprinklers (without pumps), ponds and water-features.
(Excluded from
			 this specialty are cast in place or tilt up concrete, load bearing walls for
			 structures, perimeter fencing along property lines or boundaries.) Work in this
			 specialty may also require an electrical license per
			 chapter
			 19.28 RCW and/or plumber
			 certification per chapter 18.106 RCW. Registration is not required for
			 companies who only deliver material and are not installing or placing the
			 product.
(34)
"Lathing and plastering"--
A contractor in this specialty 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 surface coating, including coatings for the
			 purpose of soundproofing and fireproofing. 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.
(35)
"Locks, security alarms and
			 warning systems" --
A contractor in this specialty sets up, installs,
			 maintains and repairs all doors and door assemblies, gates, locks and locking
			 devices, panic and fire 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 as well as early warning systems.
Work in this specialty may also require an electrical license per
			 chapter
			 19.28
			 RCW.
(36)
"Masonry"
			 --
A contractor in this specialty installs concrete units and baked clay
			 products; concrete, glass and clay block; natural and manufactured stone; terra
			 cotta; and firebrick or other material for refractory work. Includes the
			 fabrication and installation of masonry component units for structural load
			 bearing and nonload 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 waterproofing, cleaning and caulking
			 incidental to masonry construction. This specialty also includes chimney
			 cleaning and repair.
(37)
"Manufactured/mobile home set up" --
A contractor in this
			 specialty installs, alters, repairs or prepares for moving any type of
			 manufactured mobile home for the purpose of sitting the home which includes
			 connections of the plumbing, gas, electrical and foundation system.
Installation of electrical wires and equipment that convey electrical
			 power to the home or to an outlet in the home, and the ground cross-over,
			 requires an electrical license per
			 chapter
			 19.28 RCW. A certified
			 installer per chapter 46.63B RCW must be employed. (Equipment does not include
			 plug-in household appliances.)
(38)
"Metal fabrication/sheet metal" --
A contractor in this specialty fabricates, installs and repairs
			 architectural and general products made of sheet metal including but not
			 limited to exhaust hoods, counters, etc. This includes layout, cutting,
			 fabrication, and installation of sheet metal products, assembly and
			 installation of premanufactured sheet metal or other industry accepted
			 products, and bracing and reinforcing materials.
(Does not include
			 structural metal fabrication.)
(39)
"Overhead/garage doors" --
A contractor in this specialty installs wood, wood panel, steel panel or
			 steel roll-up doors and the rails and support systems common to the industries.
			 The installation of power or hand operated opening/closing motors and devices
			 is included.
Work in this specialty may also require an electrical
			 license per
			 chapter
			 19.28
			 RCW.
(40)
"Painting
			 and wall covering" --
A contractor in this specialty applies materials
			 common to the painting and decorating industry for protective or decorative
			 purposes. Includes the installation of surface coverings including paints,
			 papers, textures, fabrics, pigments, oils, turpentines, japans, dryers,
			 thinners, varnishes, shellacs, stains, fillers, waxes, adhesives, water, and
			 any other vehicles, mediums, and materials which by evaporation may be mixed
			 and applied to the surface of structures. Surface preparation, caulking,
			 pressure washing, sandblasting, and cleaning preparatory to painting/wall
			 covering are included.
Registration is not required for commissioned
			 artwork and commissioned mural painting.
(41)
"Paving/striping/seal coating" --
A contractor in this specialty installs, excavates, grades, compacts,
			 and repairs the application of asphalt/cement to streets, driveways, parking
			 lots, boat ramps, and landing strips and taxiways for an airport. Also includes
			 the filling of cracks and voids in existing surfaces, the application of
			 sealants and the installation of precast bumpers, nonelectrical traffic
			 signs/markers and striping on the surface.
(42)
"Plumbing" --
A contractor
			 in this specialty installs, alters, repairs and renovates all potable water,
			 building supply, and distribution pipes; all plumbing fixtures and traps; all
			 drainage and vent pipes; and all building drains and building sewers, including
			 their respective joints and connections, devices, receptors, and appurtenances
			 within the property lines of the premises and shall include potable water
			 piping, potable water treating or using equipment, medical gas and medical
			 vacuum systems, liquid and fuel gas piping, and water heaters, hydronic heating
			 systems and vents for same. Includes solar heating equipment attached to
			 potable water systems.
Plumber certification is required for work
			 within a building per chapter 18.106 RCW.
(43)
"Pressure washing" --
A
			 contractor in this specialty uses the force of pressurized water to clean and
			 prepare surfaces for any protective, decorative and/or functional treatment on
			 a commercial and/or residential structure. This specialty may also provide dust
			 control.
(44)
"Roofing" --
A contractor in this specialty installs and repairs materials common to
			 the industry that form a water tight, weather resistant surface for roofs and
			 decks, including all accessories, plywood, coping, flashing, valleys, gravel
			 stops, and roof insulation panels above the roof decks. The work is completed
			 using the following materials: Asphaltum, pitch, tar, felt, glass fabric,
			 urethane foam, metal roofing systems, flax, shakes, shingles, roof tile, slate
			 or any other roofing, waterproofing, weatherproofing or membrane material(s) or
			 a combination thereof. Also includes roofing related architectural sheet metal.
(This specialty does not allow for structural repair of trusses, beams
			 or joists.)
(45)
"Sandblasting"--
A contractor in this specialty uses the force of
			 compressed air in conjunction with abrasive materials and prepares surfaces for
			 any protective, decorative and/or functional treatment on a commercial or
			 residential structure.
(46)
"Sanitation systems and/or side sewers" --
A contractor in this
			 specialty fabricates and installs septic tanks, storm drains, and other sewage
			 disposal and drain systems outside the building structures. This classification
			 includes the laying of cast-iron, steel, concrete, vitreous and nonvitreous
			 pipe and any other hardware associated with these systems, including any
			 related excavating, grading, trenching, surfacing and backfilling.
(47)
"Scaffolding and safety railings"
			 --
A contractor in this specialty erects metal or wood scaffolding
			 including temporary sidewalk sheltered construction work barricades, safety
			 railings, stages and bleachers.
(48)
"Service station equipment and
			 maintenance" --
A contractor in this specialty installs auto hoisting
			 equipment, hydraulic systems, grease racks, compressors, air hoses, fuel
			 dispensing, cathotic and other service station equipment.
Work in this
			 specialty may also require an electrical license per
			 chapter
			 19.28
			 RCW.
(49)
"Siding"
			 --
A contractor in this specialty installs all types of exterior siding
			 including but not limited to wood, wood products, vinyl, aluminum and metal
			 siding to new or existing buildings.
(50)
"Signs" --
A contractor in
			 this specialty fabricates and installs all types of signs, including but not
			 limited to: Post or pole supported signs, signs attached to structures, painted
			 wall signs and modifications to existing signs.
Work in this specialty
			 may also require an electrical license per
			 chapter
			 19.28
			 RCW.
(51)
"Steel
			 erectors" --
A contractor in this specialty fabricates and erects
			 structural steel shapes and plates of any profile, perimeter or cross-section,
			 which are or may be used as structural members for buildings and structures,
			 including the rebar, riveting, welding, rigging and metal roofing and decking
			 systems.
(52)
"Structural
			 pest control"--
A contractor in this specialty constructs, repairs, and
			 installs the ventilation screens, bird exclusion devices, and caulking of
			 cracks and holes for exclusion of and repelling pests. Includes the replacement
			 of bird blocking screens.
(53)
"Suspended ceilings and acoustical tile" --
A contractor in this
			 specialty installs, modifies 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.
(54)
"Swimming pools, spas and hot
			 tubs" --
A contractor in this specialty constructs, alters, and repairs
			 permanent swimming pools and spas or hot tubs, including associated equipment.
			 May also do repairs to damaged acrylic, fiberglass, porcelain and other like
			 materials in standard bathtubs or showers.
Work in this specialty may
			 also require an electrical license per
			 chapter
			 19.28 RCW and/or plumber
			 certification per chapter 18.106 RCW.
(55)
"Tanks and tank removal" --
A contractor in this specialty installs and/or removes fuel storage,
			 grain and other types of tanks which have been or are to be used for dispensing
			 gasoline, diesel fuel, waste oil, kerosene, propane or other chemicals. This
			 work involves the installation and/or removal of all incidental tank related
			 piping.
Work in this specialty may also require an electrical license
			 per chapter 19.28
			 RCW.
(56)
"Tile,
			 ceramic, mosaic and natural and manufactured stone" --
A contractor in
			 this specialty prepares surfaces as necessary and installs glazed wall,
			 ceramic, mosaic, quarry, 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.
Work in this specialty may also require plumber
			 certification per chapter 18.106 RCW and/or an electrical license per
			 chapter
			 19.28
			 RCW.
(57)
"Tree
			 removal" --
A contractor in this specialty falls and/or removes trees,
			 stumps and/or branches on residential or commercial property or near a
			 residential or commercial structure, outbuilding or fence.
(58)
"Utilities and
			 telecommunications"--
A contractor in this specialty provides excavation,
			 cabling, horizontal boring, grading, and backfilling necessary for construction
			 of a utility or telecommunication system prior to the line of demarcation. Also
			 performs fabrication and/or installs pipes and piping for the conveyance or
			 transmission of steam, gases, chemicals, and other substances.
(59)
"Window coverings" --
A
			 contractor in this specialty installs window treatment rods and other handling
			 devices and covering products, including but not limited to the following:
			 Material and fabric that make up louvers, shutters, and blinds; residential and
			 commercial draperies; permanent screens; expanded metal window and door guards;
			 and plastic film and/or other treatments applied for temperature
			 control.
(60)
"Water
			 conditioning equipment" --
A contractor in this specialty installs water
			 conditioning equipment or water treatment equipment with the use of only such
			 pipe and fittings as are necessary to connect the water conditioning or water
			 treatment equipment in a water supply system and only within six feet of the
			 water service supply. Drainlines must run to existing floor drain, standpipe or
			 outside the structure.
Work in this specialty may also require plumber
			 certification per chapter 18.106 RCW.
(61)
"Welding and ornamental metal" --
A contractor in this specialty installs, alters, removes, or repairs all
			 architectural, structural and decorative steel, aluminum or other materials in
			 welding techniques by the use of processes common to the industry.
(62)
"Well drilling" --
A
			 contractor in this specialty installs and repairs water wells and pumps by
			 boring, drilling, excavating, casing, cementing and cleaning to provide a
			 supply of uncontaminated water. May also install water conditioning equipment
			 and perform soil sampling.
(Excludes the 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.) Work in this specialty may also require plumber certification per
			 chapter 18.106 RCW or an electrical license per
			 chapter
			 19.28 RCW. (If both the
			 electrical and plumbing trades are pursued this specialty is not
			 allowed.)
(63)
"Wood/pellet and gas stove" --
A contractor in this specialty
			 installs wood, pellet, or gas stoves, zero clearance and fire place inserts.
			 These systems may include the following areas of work and related equipment:
			 Air-filtering devices; gas piping from service connection to equipment;
			 chimney, flashing and flues; and outside combustion air ducts.
The
			 installing of piping, ducting and equipment for transmitting the heated air or
			 water produced by the devices may also require an electrical license per
			 chapter
			 19.28 RCW and/or plumber
			 certification per chapter 18.106 RCW.
Statutory Authority:
				  Chapter
				  18.27 RCW and 2008 c 120.
				  09-10-079, § 296-200A-016, filed 5/5/09, effective 6/5/09. Statutory
				  Authority:
				  Chapter
				  18.27 RCW and 2007 c 436.
				  08-16-091, § 296-200A-016, filed 8/4/08, effective
				  9/4/08.