Chapter 296-17A Classifications for Washington workers' compensation insurance.

0101-02 Excavation work and land clearing, N.O.C.: Pool or pond excavation, and placement of pool or pond linersApplies to:Contractors engaged in general excavation work for others that is not covered by another classification (N.O.C.);Clearing right of ways for subsurface constr…

0103-09 Drilling or blasting: N.O.C.Applies to:• Businesses engaged in drilling operations for others not covered by another classification (N.O.C.); and• Blasting operations not covered by another classification (such as the blasting of rock in connection with highway, street, o…

0104-12 Dredging, N.O.C.Applies to:Businesses engaged in providing dredging services to others that are not covered by another classification (N.O.C.).Work activities include, but are not limited to:• Cleaning, deepening, or widening a body of water such as a harbor or other wate…

0105-13 Fence erection or repair: N.O.C.; parking meter installation; and placement of wire mesh on slopes for slope protectionApplies to businesses engaged in:• Erection and repair of all types of metal, wood, plastic, or vinyl fences not covered by another classification (N.O.C…

0106-00 Tree care and pruning services, N.O.C.Applies to:Specialist contractors engaged in providing a variety of tree care services such as tree topping and tree pruning that are not covered by another classification (N.O.C).A primary purpose of this work is to remove tree or br…

0107-00 Utility line construction: Underground, N.O.C.Applies to:Contractors engaged in underground utility line or cable construction.Work activities include, but are not limited to:• Installation and maintenance of underground communication and power lines, including main, exte…

0108-00 Ditches and canals, N.O.C.Applies to:Contractors engaged in the construction of ditches and canals not covered by another classification (N.O.C.).A ditch or canal consists of a long trench dug in the ground that will remain uncovered to serve as an artificial waterway or …

0112-00 Commercial production of sand, gravel, clay and stone productsApplies to:Businesses engaged in the production of sand, gravel, clay, and stone.Work processes and activities include, but are not limited to:• Excavating material from an open or surface type pit at the produ…

0201-01 Bridge, trestle, overhead crossing and viaduct: Construction, maintenance and repairApplies to contractors engaged in the construction, maintenance or repair of bridges, trestles, overhead crossings and viaducts including the foundations and approaches. These types of str…

0202-02 Pile construction: Driven methodApplies to:Businesses engaged in pile construction utilizing a driven or pounding method. Pile driving involves long sturdy posts or columns of timber, steel, or concrete being driven into the earth as a foundation or support for a structur…

0210-00 Asphalt paving or surfacing: Highway, street or roadwayApplies to:Contractors engaged in forms of asphalt paving or surfacing, resurfacing, scraping, sawing, cutting, or patching operations performed on or in connection with new or existing highway, street, or roadway pro…

0212-00 Asphalt paving or surfacing, N.O.C.Applies to:• Asphalt paving or surfacing, resurfacing, scraping, sawing, cutting, or patching operations not in connection with highway, street, or roadway projects and not covered by another classification (N.O.C.). The process begins a…

0214-00 Concrete paving and repaving: Highways, streets, or roadways, N.O.C.Applies to:Businesses engaged in concrete paving and repaving of highways, streets, or roadways including approaches and bridges.Paving and repaving begins after the road's right of way has been cleared a…

0217-00 Concrete flatwork - Construction and/or repair: N.O.C.Applies to:Contractors engaged in the construction and/or repair of concrete flatwork not covered by another classification (N.O.C.).Projects may include, but are not limited to:• Curbing;• Fences;• Pathways;• Patios;•…

0219-00 Construction specialty services, N.O.C.Applies to contractors engaged in the installation or removal of lighting for highways, streets, roadways, parking lots, and light standards. It also applies to the installation, repair, or removal of signs, guardrails, roadside refl…

0301-04 Lawn type sprinkler systems: Installation, service, or repairApplies to:Contractors engaged in the installation, service, or repair of lawn type sprinkler systems.Lawn sprinkler systems are installed at private residences or commercial businesses.Work includes, but is not…

0302-01 Brick, block, and stone masonry work, including repairs N.O.C.Applies to contractors engaged in interior or exterior work in brick, block, stone, brick or stone veneer, granite, marble, slate, or quartz, not covered by another classification (N.O.C.).Projects in this clas…

0303-00 Plastering, stuccoing and lathing buildings, N.O.C.Applies to:Contractors engaged in interior and exterior plastering, stuccoing, and lathing work on buildings or structures not covered by another classification (N.O.C.).Work activities include, but are not limited to:• L…

0306-00 Plumbing, N.O.CApplies to contractors engaged in plumbing work not covered by another classification (N.O.C.). Work contemplated by this classification includes activities such as, but not limited to, rough-in plumbing work as part of new or remodel projects, placement of…

0307-01 Heating, ventilation, air conditioning, refrigeration and furnace systems: Installation, service or repair.Applies to:Installation, service, or repair of heating systems, ventilation systems, air conditioning systems, refrigeration systems, furnaces, built-in vacuum syste…

0308-00 Chemical spraying and fumigatingApplies to establishments engaged in providing chemical spraying and fumigating services only to established residential landscaping and commercial properties. Work contemplated by this classification includes, but is not limited to, the ap…

0403-00 Sign: Erection, repair, and/or removal, including related painting and maintenanceApplies to contractors engaged in the erection, repair, and/or removal of signs, including related painting and maintenance. Signs include, but are not limited to, commercial business or per…

0502-04 Floor coverings or countertops: Installation or removalApplies to contractors engaged in the installation or removal of floor coverings or countertops.• Floor coverings include, but are not limited to, carpet, vinyl, laminate, tile, terrazzo, or parquet;• Countertops incl…

0504-06 Waterproofing, N.O.C.: Buildings or structuresApplies to:Businesses engaged in waterproofing buildings or structures not covered by another classification (N.O.C.) regardless of the height of the building or structure.Structures waterproofed may include, but are not limit…

0507-05 Roofwork construction and repairApplies to contractors engaged in the installation or repair of roofing material on all types of new or existing buildings or structures. Roofing materials include, but are not limited to, felt roofing paper, rolled composition, wood, fiber…

0508-00 Radio, television, cellular or water towers, poles and towers, N.O.C.: Construction or erection, dismantling, maintenance, or repairApplies to:• Contractors constructing, erecting, dismantling, maintaining, or repairing iron, steel, or wood radio, television, cellular, or…

0509-00 Overhead telephone or telegraph lines: New construction or extension of lines - Including poles or towers; erection, maintenance or repair by contractorApplies to:Contractors engaged in the construction, maintenance, or repair of overhead telephone or telegraph lines, pol…

0510-00 Wood frame building: Construction or alterations, N.O.C.Applies to contractors engaged in wood frame building construction or alterations not covered by another classification (N.O.C.). For the purposes of this classification, wood frame building construction means buildi…

0511-00 Glass installation in buildingsApplies to:• Contractors and glass merchants engaged in the installation and/or removal of glass in buildings and residences.• Businesses engaged in glass tinting or the application of tinted plastic film to glass windows and doors in buildi…

0512-00 Insulation or sound proofing materials: Installation, N.O.C.Applies to contractors engaged in installing insulation or sound proofing materials not covered by another classification (N.O.C.). This classification includes the installation or removal of insulation material …

0513-00 Interior finish carpentryApplies to contractors engaged in interior finish carpentry work for all types of buildings. Generally, the interior finish carpentry work begins after the drywall, taping, texturing, and painting or wallpapering is complete. This classification i…

0514-00 Garage or overhead door: Installation, service or repairApplies to:• Businesses engaged in the installation, service, or repair of garage or overhead doors made of wood or metal.As part of a new construction project, the installation usually occurs before the building or …

0516-00 Building repair, remodeling and carpentryThis subcode applies to a firm that chooses to report all construction phases in one classification. This is to simplify recordkeeping.Applies to contractors engaged in building repair, remodeling and carpentry work.This classifica…

0517-00 Factory built housing units: Set up by contractor or by employees of the manufacturerApplies to the set up of factory built housing units such as mobile/manufactured homes, modular homes, or prefab cedar homes by contractors who work independently from a sales dealership …

0518-00 Nonwood frame buildings and structures, new construction and repair, N.O.C.Applies to work on nonwood frame buildings and structures (without regard to size or number of stories) when the superstructure (skeleton framework or building shell) consists of concrete, iron or …

0519-00 Sheet metal work in building construction N.O.C.Applies to:• Contractors engaged in the installation or repair of sheet metal work in building construction, not covered by another classification (N.O.C.)Projects include, but are not limited to:• Interior and exterior shee…

0521-00 Painting building interiors; wallpaper hanging/removalApplies to:Businesses painting building interiors regardless of the height inside the building.Building interiors include, but are not limited to:• Churches;• Coliseums;• Factories;• Single and multiple story residenti…

0540-00 Wallboard installation, including scrapping - Discounted rate (to be assigned only by the drywall underwriter)Applies to contractors engaged in the installation or repair of wallboard. This classification includes the installation of wallboard, drywall, or sheetrock in al…

0541-00 Wallboard taping, including texturing and priming - Discounted rate (to be assigned only by the drywall underwriter)Applies to contractors engaged in taping wallboard in residential or commercial buildings or structures. The process of taping occurs after wallboard, drywa…

0550-00 Wallboard installation, including scrapping: Nondiscounted rate (to be assigned only by the drywall underwriter)Applies to contractors engaged in the installation or repair of wallboard. This classification includes the installation of wallboard, drywall, or sheetrock in …

0551-00 Wallboard taping, including texturing and priming - Nondiscounted rate (to be assigned only by the drywall underwriter)Applies to contractors engaged in taping wallboard in residential or commercial buildings or structures. The process of taping occurs after wallboard, dr…

0601-00 Electrical wiring in buildings; electrical wiring, N.O.C.; Permanent flood lighting: InstallationApplies to businesses engaged in:• Electrical wiring of buildings;• Electrical wiring not covered by another classification (N.O.C.);• Permanent flood lighting.Work activities…

0602-03 Elevators or elevator door bucks: Installation, service and/or repairApplies to:Installation, service and/or repair of freight or passenger elevators and elevator door bucks in private residences and commercial buildings or structures. Generally, the process begins after …

0603-00 Machinery: Installation, service and/or repair, N.O.C.; Millwright work, N.O.C.Applies to:• Installation, service and/or repair of heavy machinery or equipment at a customer's location, not covered by another classification (N.O.C.).• Millwright work and the service or re…

0604-04 Scrap metal dealers or processors: Collecting, sorting, and reduction of scrap metalApplies to:Dealers or processors of ferrous and nonferrous scrap metals for resale.Materials include, but are not limited to:• Ferrous metals primarily composed of iron or steel;• Nonferro…

0606-01 Vending, coin-, or token-operated machines: Installation service and/or repairApplies to:Businesses that install, service, and/or repair vending, coin-, or token-operated machines.Work activities include, but are not limited to:• Delivering machines to desired location;• …

0607-11 Household appliances: Installation, service, or repair by nonstore service or repair company; dealers of used household appliancesApplies to:• Businesses engaged in installation, service, or repair of electrical or gas household appliances;• Dealers of used electrical or …

0608-01 Electrical alarm systems: Installation, service, and/or repairApplies to contractors engaged in the installation, service, and/or repair of electrical alarm systems such as, but not limited to, burglar, smoke, security, and fire, within buildings. Operations contemplated …

0701-00 New dam construction: All operations in dam site areaApplies to:Contractors engaged in the construction of new dams only, and includes all operations in the dam site area. A dam is a barrier built across a waterway to control the flow or level of water.This classification…

0803-00 Cities and towns - All other employeesApplies to employees of cities or towns who:• Perform manual labor;• Supervise a work crew performing manual labor such as custodial or maintenance; and• Operate machinery or equipment, including buses. This classification includes:• …