Idaho Administrative Code › Title IDAPA 24 - Occupational and Professional Licenses, Division of › Rule 24.39.50 - RULES OF THE PUBLIC WORKS CONTRACTORS LICENSE BOARD › Section 24.39.50.200 - TYPE 4-SPECIALTY CONSTRUCTION CATEGORIES

Current through August 31, 2023
A license for Type 4-Specialty Construction must list one (1)
				or more specialty construction categories to which the license is restricted.
				Categories and their definitions are: (3-28-23)
01.
01107 Engineering
. A
			 specialty contractor whose primary business includes providing engineering and
			 design services such as civil, electrical, mechanical, and structural.
			 (3-28-23)
02.
01541
			 Scaffolding and Shoring
. A specialty contractor whose primary business
			 is the installation of any temporary elevated platform and its supporting
			 structure used for supporting workmen or materials or both, and props or posts
			 of timber or other material in compression used for the temporary support of
			 excavations, formwork or unsafe structures; the process of erecting shoring.
			 (3-28-23)
03.
01542 Craning
			 and Erection
. A specialty contractor whose primary business includes the
			 art, ability and skill to safely control the workings of a crane in such a
			 manner that building materials, supplies, equipment and structural work can be
			 raised and set in a final position. (3-28-23)
04.
01550 Construction Zone Traffic
			 Control
. A specialty contractor whose primary business is the
			 installation or removal of temporary lane closures, flagging or traffic
			 diversions, utilizing pilot cars, portable devices such as cones, delineators,
			 barricades, sign stands, flashing beacons, flashing arrow trailers, and
			 changeable message signs on roadways, public streets and highways or public
			 conveyances. (3-28-23)
05.
01570 Temporary Erosion and Sediment Controls
. A specialty
			 contractor whose primary business includes the ability and expertise to install
			 silt fencing or other similar devices to prevent erosion and contain silt.
			 (3-28-23)
06.
02110
			 Excavation, Removal and Handling of Hazardous Material
. A specialty
			 contractor whose primary business includes the excavation and removal of toxic
			 and hazardous site materials. Contractors must be properly licensed and
			 certified if required. (3-28-23)
07.
02115 Removal of Underground
			 Storage Tanks
. A specialty contractor whose primary business includes,
			 but is not limited to, the excavation, removal, cleanup, and disposal of
			 underground storage tanks that have contained petrochemical type fuels. This
			 work should include the sampling and testing of surrounding materials and
			 filing of closure documents. (3-28-23)
08.
02195 Environmental Remediation,
			 Restoration and Soil Stabilization
. A specialty contractor whose primary
			 business is the remediation and restoration of contaminated environmental
			 sites. (3-28-23)
09.
02210
			 Drilling
. A specialty contractor whose primary business includes
			 practical elementary knowledge of geology and hydrology; the art, ability,
			 knowledge, science and expertise to bore, drill, excavate, case, pack or cement
			 by use of standard practices, including the use of diamond bits, cable tools,
			 percussion, air percussion, rotary, air rotary, reverse circulation rotary
			 methods or jetting. (3-28-23)
10.
02220 Demolition
. A specialty contractor whose primary business
			 includes the ability and expertise to demolish all types of buildings or
			 structures and to remove all of such buildings or structures from the premises,
			 and maintain the premises surrounding demolition site safely for passing
			 public. (3-28-23)
11.
02230
			 Site Clearing
. A specialty contractor whose primary business includes
			 the ability and expertise to remove and dispose of all trees, brush, shrubs,
			 logs, windfalls, stumps, roots, debris and other obstacles in preparation for
			 excavation of a construction site or other uses. (3-28-23)
12.
02231 Logging
. A specialty
			 contractor whose primary business and expertise includes the clearing, cutting,
			 removal and transportation of logs and trees and the construction of temporary
			 roads and structures for such operations along with any reclamation work
			 associated with such operations. (3-28-23)
13.
02232 Tree Removal and
			 Trimming
. A specialty contractor whose primary business includes
			 pruning, removal, or guying of trees, limbs, stumps, and bushes including
			 grinding and removal of such items. (3-28-23)
14.
02240 Dewatering and Subsurface
			 Drainage
. A specialty contractor whose primary business is to control
			 the level and flow of subsurface water. (3-28-23)
15.
02260 Earth Retention Systems,
			 Mechanical Stabilized Earth Walls and Retaining Walls
. A specialty
			 contractor whose primary business includes the building of earth retention
			 systems, mechanical stabilized earth walls and retaining walls.
			 (3-28-23)
16.
02265 Slurry
			 Walls
. A specialty contractor whose primary business is the construction
			 of below ground structural diaphragm walls or containment walls through the
			 combined use of trench excavation, mud slurry and tremie concrete.
			 (3-28-23)
17.
02270 Rockfall
			 Mitigation and High Scaling
. A specialty contractor whose primary
			 business is rockfall mitigation and high scaling. (3-28-23)
18.
02310 Excavation and
			 Grading
. A specialty contractor whose primary business includes such
			 work as digging, moving and placing material forming the surface of the earth
			 in such manner that a cut, fill, excavation and any similar excavating
			 operation can be done with the use of hand and power tools and machines that
			 are used to dig, move and place that material forming the earth's surface.
			 (3-28-23)
19.
02312 Dust
			 Control, Dust Abatement and Dust Oiling
. A specialty contractor whose
			 primary business is dust control, dust abatement and dust oiling.
			 (3-28-23)
20.
02317 Rock
			 Trenching
. A specialty contractor whose primary business is rock
			 trenching. (3-28-23)
21.
02318 Hauling
. A specialty contractor whose primary business
			 includes the ability and expertise to obtain or move specified materials by
			 transportation in a vehicle. (3-28-23)
22.
02319 Blasting
. A specialty
			 contractor whose primary business includes the use of conventional and high
			 explosives for pre-splitting, surface, underground and underwater blasting,
			 drill, trench, or excavate for use of explosives; priming and loading drilled,
			 trenched or excavated areas by pipe tamping, pneumatic loading, injector
			 loading, mud capping, slurry loading, combination of pneumatic and injector
			 loading or hand loading; use of volt, ohms and milliampere meter (VOM) in
			 testing blasting machine output voltage, power line voltage, measuring electric
			 blasting cap or blasting circuit resistance, testing for current leakage,
			 testing for AC-DC stray current and voltage, leading wires for open or short
			 circuits, rack bar blasting machine for running short or galvanometer output
			 voltage; use of blasting caps, electric blasting caps, delay electric blasting
			 caps, primacord and all other detonating devices. (3-28-23)
23.
02325 Dredging
. A specialty
			 contractor whose primary business includes the excavation or removal of earth,
			 rock, silt, or sediment from bodies of water including but not limited to
			 streams, lakes, rivers or bays by means of specialized equipment.
			 (3-28-23)
24.
02404
			 Horizontal and Directional Earth Boring, Trenching and Tunneling
. A
			 specialty contractor whose primary business and expertise includes boring,
			 trenching or tunneling. (3-28-23)
25.
02450 Drilled Piers, Pile Driving,
			 Caisson Drilling, Geopier and Helical Piers
. A specialty contractor
			 whose primary business includes drilling piers, pile driving, caisson drilling,
			 Geopier and helical piers. (3-28-23)
26.
02500 Utilities
. A specialty
			 contractor whose primary business includes the construction and installation of
			 pipe lines for the transmission of sewage, gas and water, including minor
			 facilities incidental thereto; installation of electrical poles, towers, arms,
			 transformers, fixtures, conduits, conductors, switch gear, grounding devices,
			 panels, appliances and apparatus installed outside of buildings; including
			 excavating, trenching, grading, back fill, asphalt patching as well as all
			 necessary work and installation of appurtenances in connection therewith.
			 (3-28-23)
27.
02520 Well
			 Drilling
. A specialty contractor whose primary business includes the
			 practical elementary knowledge of geology, hydrology, the occurrence of water
			 in the ground, water levels in wells, the prevention of surface and sub-surface
			 contamination and pollution of the ground water supply; and the art, ability,
			 experience, knowledge, science, and expertise to bore, drill, excavate, case,
			 screen, cement, clean and repair water wells; or to do any or any combination
			 of any or all such boring, drilling, excavating, casing, cementing, cleaning
			 and repairing with hand or power tools or rigs, including the installation and
			 repair of pumps. (3-28-23)
28.
02580 Installation of Communication Towers
. A specialty contractor
			 whose primary business and expertise is the installation of communication
			 towers. (3-28-23)
29.
02660
			 Membrane Liners for Ponds and Reservoirs
. A specialty contractor whose
			 primary business includes the installation of liners for the purpose of
			 containment of liquids. (3-28-23)
30.
02720 Crushing
. A specialty
			 contractor whose primary business includes the ability and expertise to reduce
			 rocks and aggregates to a smaller and uniform size and gradation to meet an
			 agreed specification. (3-28-23)
31.
02740 Asphalt Paving
. A specialty contractor whose primary
			 business includes the installation of aggregate base course, cement treated
			 base, bitumen treated base, asphalt concrete and the application of asphalt
			 surfacing and surface repairs of streets, intersections, driveways, parking
			 lots, tennis courts, running tracks, play areas; including the application or
			 installation of primer coat, asphalt binder course, tack coating, seal coating
			 and chips, slurry seal and chips, flush or flog coats, asphalt curbs, concrete
			 bumper curbs, redwood headers, asphalt surface binder emulsion, asbestos and
			 sand and acrylic color systems. (Synthetic and athletic surfacing are category
			 02790 Athletic and Recreational Surfaces.) Also includes crack sealing, asphalt
			 maintenance repair and soil pulverization. (3-28-23)
32.
02761 Traffic Marking and
			 Striping
. A specialty contractor whose primary business includes the
			 art, ability and expertise to apply markings to streets, roadways, or parking
			 surfaces pre-designed for the use of parking or passage of vehicles by the
			 application of directional lines, buttons, markers, and signs made of but not
			 limited to plastic, paint, epoxies and rubber, in such manner as to provide for
			 the channeling and controlling of the traffic flow. Also includes temporary
			 striping. (3-28-23)
33.
02785
			 Asphalt Maintenance and Repair, Seal Coating, Crack Sealing and Chip
			 Sealing
. A specialty contractor whose primary business is asphalt
			 maintenance and repair, seal coating, crack sealing and chip sealing.
			 (3-28-23)
34.
02790 Athletic
			 and Recreational Surfaces
. A specialty contractor whose primary business
			 is the installation of specialty surfaces including but not limited to non-wood
			 athletic floors, tennis courts, running tracks and artificial turf. This would
			 include any subsurface preparation such as leveling, excavation, fill and
			 compaction or grading. The application of surfacing, mixing, spreading or
			 placing of emulsions, binders, sand and acrylic color systems is also included
			 along with the installation of modular, plastic athletic floors such as "Sport
			 Court" type floors. This category does not include any type of structure
			 required for the installation of these surfaces. (3-28-23)
35.
02810 Sprinkler and Irrigation
			 Systems
. A specialty contractor whose primary business includes the
			 installation of types and kinds of water distribution systems for complete
			 artificial water or irrigation of gardens, lawns, shrubs, vines, bushes, trees
			 and other vegetation, including the trenching, excavating and backfilling in
			 connection therewith. (Low voltage only.) (3-28-23)
36.
02820 Fencing
. A specialty
			 contractor whose primary business includes the installation and repair of any
			 type of fencing. (3-28-23)
37.
02840 Guardrails and Safety Barriers
. A specialty contractor whose
			 primary business includes the installation of guardrails and safety barriers
			 (including cattle guards). (3-28-23)
38.
02850 Bridges and
			 Structures
. A specialty contractor whose primary business includes the
			 installation, alteration and repair of bridges and related structures,
			 including culverts. (3-28-23)
39.
02855 Bridge Crossings and Box Culverts
. A specialty contractor
			 whose primary business is the installation or construction, or both, of any
			 bridge or crossing structure shorter than twenty (20) feet measured on the
			 centerline of the roadway or trail. (3-28-23)
40.
02880 Installation of School
			 Playground Equipment
. A specialty contractor whose primary business is
			 the installation of school playground equipment. (3-28-23)
41.
02890 Traffic Signs and
			 Signals
. A specialty contractor whose primary business includes the art,
			 ability, knowledge, experience, science and expertise to fabricate, install and
			 erect signs, including electrical signs and including the wiring of such signs.
			 A licensed electrician must perform all the electrical work.
			 (3-28-23)
42.
02900
			 Landscaping, Seeding and Mulching
. A specialty contractor whose primary
			 business includes the preparation of plots of land for architectural,
			 horticulture and provisions of decorative treatment and arrangement of gardens,
			 lawns, shrubs, vines, bushes, trees and other decorative vegetation;
			 construction of conservatories, hot and green houses, drainage and sprinkler
			 systems, and ornamental pools, tanks, fountains, walls, fences and walks,
			 arrange, fabricate and place garden furniture, statuary and monuments in
			 connection therewith. (3-28-23)
43.
02910 Slope Stabilization, Hydroseeding, Hydromulching, Native Plant
			 Revegetation for Erosion Control
. A specialty contractor whose primary
			 business is slope stabilization, including necessary tillage and plant bed
			 preparation using hydroseeding, hydromulching and native plant revegetation for
			 erosion control. (3-28-23)
44.
02935 Landscape Maintenance
. A specialty contractor whose primary
			 business and expertise includes the maintenance of existing lawns, gardens, and
			 sprinkler systems. This would include mowing, weeding, fertilization, pest
			 control and minor repair or relocation of sprinkler systems.
			 (3-28-23)
45.
02937 Pest
			 Control, Sterilization and Herbicide Applications
. A specialty
			 contractor whose primary business includes the mixing, transportation and
			 application of fertilizers, pesticides, herbicides, and sterilization chemicals
			 for the control of insects, pests and weeds. (3-28-23)
46.
02955 Pipeline Cleaning, Sealing,
			 Lining and Bursting
. A specialty contractor whose primary business and
			 expertise includes cleaning, sealing, lining and bursting pipelines.
			 (3-28-23)
47.
02965 Cold
			 Milling, Rumble Strip Milling, Asphalt Reclaiming and Pavement Surface
			 Grinding
. A specialty contractor whose primary business includes cold
			 milling, rumble strip milling, asphalt reclaiming and pavement surface
			 grinding. (3-28-23)
48.
02990
			 Structural Moving
. A specialty contractor whose primary business
			 includes but is not limited to raising, lowering, cribbing, underpinning and
			 moving of buildings or structures. This does not include the alterations,
			 additions, repairs or rehabilitation of the retained portion of the structure.
			 (3-28-23)
49.
03200 Concrete
			 Reinforcing Rebar Installation
. A specialty contractor whose primary
			 business includes the ability and expertise to fabricate, place and tie steel
			 mesh or steel reinforcing bars or rods of any profile, perimeter or
			 cross-section that are or may be used to reinforce concrete.
			 (3-28-23)
50.
03300
			 Concrete
. A specialty contractor whose primary business includes the
			 ability and expertise to process, proportion, batch and mix aggregates
			 consisting of sand, gravel, crushed rock or other inert materials having clean
			 uncoated grains of strong and durable minerals, cement and water or to do any
			 part or any combination of any thereof, in such a manner that acceptable mass,
			 pavement, flat and other cement and concrete work can be poured, placed,
			 finished and installed, including the placing, forming and setting of screeds
			 for pavement or flat work. Also includes concrete sidewalks, driveways, curbs
			 and gutters. (3-28-23)
51.
03370 Specially Placed Concrete, Concrete Pumping and Shotcreting
.
			 A specialty contractor whose primary business includes the ability and
			 equipment necessary to deliver and install concrete, and similar materials to
			 their final destination in buildings and structures. (3-28-23)
52.
03380 Post-Tensioned Concrete
			 Structures or Structural Members
. A specialty contractor whose primary
			 business is the post-tensioning of structural elements using sleeved tendons of
			 high-strength prestressing steel. (3-28-23)
53.
03500 Gypcrete
. A specialty
			 contractor whose primary business includes the ability and expertise to mix and
			 apply gypsum concrete. (3-28-23)
54.
03600 Concrete Grouting
. A
			 specialty contractor whose primary business includes the ability and the
			 equipment necessary to place concrete grouts. Concrete grouts are thin, fluid,
			 shrink resistant, mortar-like materials used for filling joints and cavities
			 and setting and anchoring items in masonry and concrete. (3-28-23)
55.
03650 Pressure Grouting and Slab
			 Jacking
. A specialty contractor whose primary business includes pressure
			 foundation grouting and jacking and the injection of concrete or mortar into
			 foundations for stabilization. (3-28-23)
56.
03900 Concrete Demolition, Concrete
			 Sawing and Cutting, Core Drilling, Joint Sealing and Hydrocutting
. A
			 specialty contractor whose primary business includes concrete cutting,
			 drilling, sawing, cracking, breaking, chipping or removal of concrete. This
			 category also includes the caulking or sealing of joints or cracks caused by
			 such operations. (3-28-23)
57.
04000 Masonry
. A specialty contractor whose primary business
			 includes the installation with or without the use of mortar or adhesives of
			 brick, concrete block, adobe units, gypsum partition tile, pumice block or
			 other lightweight and facsimile units and products common to the masonry
			 industry. (3-28-23)
58.
04900
			 Chemical Cleaning and Masonry Restoration
. A specialty contractor whose
			 primary business includes the cleaning or restoration of masonry through the
			 use of chemicals, pressure washing, sand blasting or other methods.
			 (3-28-23)
59.
05090
			 Welding
. A specialty contractor whose primary business causes metal to
			 become permanently attached, joined and fabricated by the use of gases or
			 electrical energy, developing sufficient heat to create molten metal, fusing
			 the elements together. (3-28-23)
60.
05100 Steel Fabrication, Erection
			 and Installation
. A specialty contractor whose primary business includes
			 the ability and expertise to fabricate, place and tie steel reinforcing bars,
			 erect structural steel shapes and plates, of any profile, perimeter or
			 cross-section, that are or may be used to reinforce concrete or as structural
			 members for buildings and structures, including riveting, welding and rigging
			 only in connection therewith, in such a manner that steel reinforcing and
			 structural work can be fabricated and erected. (3-28-23)
61.
05700 Ornamental Metals
. A
			 specialty contractor whose primary business includes the art, ability,
			 experience, knowledge, science and expertise to assemble, case, cut, shape,
			 stamp, forage, fabricate and install sheet, rolled and cast, brass, bronze,
			 copper, cast iron, wrought iron, monel metal, stainless steel, and any other
			 metal or any combination thereof, as have been or are now used in the building
			 and construction industry for the architectural treatment and ornamental
			 decoration of buildings and structures, in such a manner that, under an agreed
			 specification, acceptable ornamental metal work can be executed, fabricated and
			 installed; but does not include the work of a sheet metal contractor.
			 (3-28-23)
62.
05830 Bridge
			 Expansion Joints and Repair
. A specialty contractor whose primary
			 business and expertise is the repair of bridge expansion joints.
			 (3-28-23)
63.
06100
			 Carpentry, Framing and Remodeling
. A specialty contractor whose primary
			 business includes the placing and erection of floor systems, walls, sheeting,
			 siding, trusses, roof decking of either wood or light gauge metal framing. This
			 contractor also installs finish items such as running trim, sashes, doors,
			 casing, cabinets, cases and other pre-manufactured finished items.
			 (3-28-23)
64.
06130 Log and
			 Heavy Timber Construction
. A specialty contractor whose primary business
			 includes the ability and expertise to build and erect log or heavy timber
			 structures. (3-28-23)
65.
06139 Docks - Log and Wood Structures
. A specialty contractor
			 whose primary business includes the ability and expertise to construct log and
			 wood structured docks. (3-28-23)
66.
06200 Finish Carpentry and
			 Millwork
. A specialty contractor whose primary business includes the
			 art, ability, experience, knowledge, science and expertise to cut, surface,
			 join, stick, glue and frame wood and wood products, in such a manner that,
			 under an agreed specification, acceptable cabinet, case, sash, door, trim,
			 nonbearing partition, and such other mill products as are by custom and usage
			 accepted in the building and construction industry as millwork and fixtures,
			 can be executed; including the placing, erecting, fabricating and finishing in
			 buildings, structures and elsewhere of such millwork and fixtures or to do any
			 part or any combination of any thereof. (3-28-23)
67.
07100 Waterproofing and
			 Dampproofing
. A specialty contractor whose primary business includes the
			 ability and expertise to apply waterproofing membranes, coatings of rubber,
			 latex, asphaltum, pitch, tar or other materials or any combination of these
			 materials, to surfaces to prevent, hold, keep and stop water, air or steam from
			 penetrating and passing such materials, thereby keeping moisture from gaining
			 access to material or space beyond such waterproofing. (3-28-23)
68.
07200 Thermal Insulation
. A
			 specialty contractor whose primary business includes the installation of any
			 insulating media in buildings and structures for the purpose of temperature
			 control. (3-28-23)
69.
07240
			 Stucco and Exterior Insulation Finish Systems (EIFS)
. A specialty
			 contractor whose primary business includes the ability and expertise to install
			 Stucco and EIFS. (3-28-23)
70.
07400 Roofing and Siding
. A specialty contractor whose primary
			 business includes the ability and expertise to examine surfaces and to bring
			 such surfaces to a condition where asphaltum, pitch, tar, felt, flax, shakes,
			 shingles, roof tile, slate and any other material or materials or any
			 combination thereof, that use and custom has established as usable for, or
			 which material or materials are now used as, such waterproof, weatherproof or
			 watertight seal for such membranes, roof and surfaces; but does not include a
			 contractor whose sole contracting business is the installation of devices or
			 stripping for the internal control of external weather conditions.
			 (3-28-23)
71.
07450 Siding
			 and Decking
. A specialty contractor whose primary business includes the
			 application or installation of exterior siding, decking or gutters including
			 wood, wood products, vinyl, aluminum and metal to new or existing buildings and
			 includes wooden decks and related handrails. (This category does not include
			 the construction or installation of covers or enclosures of any kind.)
			 (3-28-23)
72.
07700 Sheet
			 Metal Flashings, Roof Specialties and Accessories
. A specialty
			 contractor whose primary business includes the art, ability, experience,
			 knowledge, science and expertise to select, cut, shape, fabricate and install
			 sheet metal such as cornices, flashings, gutters, leaders, rainwater down
			 spouts, pans, etc., or to do any part or any combination thereof, in such a
			 manner that sheet metal work can be executed, fabricated and installed.
			 (3-28-23)
73.
07800 Sprayed
			 on Fireproofing
. A specialty contractor whose primary business includes
			 the mixing, transportation, and installation of fire proofing materials for
			 buildings and structures. (3-28-23)
74.
07920 Caulking and Joint
			 Sealants
. A specialty contractor whose primary business includes the
			 ability and expertise for installation of elastomeric and rigid joint sealants,
			 caulking compounds, and related accessories. (3-28-23)
75.
08100 Doors, Gates, Specialty Doors
			 and Activating Devices
. A specialty contractor whose primary business is
			 the installation, modification or repair of residential, commercial or
			 industrial doors and door hardware. This includes but is not necessarily
			 limited to wood, metal clad or hollow metal, glass, automatic, revolving,
			 folding and sliding doors, power activated gates, or movable sun
			 shades/shutters. Card activated equipment and other access control devices and
			 any low voltage electronic or manually operated door hardware devices are also
			 a part of this category. (3-28-23)
76.
08500 Windows, Glass and
			 Glazing
. A specialty contractor whose primary business includes the art,
			 ability, experience, knowledge and expertise to select, cut, assemble and
			 install all makes and kinds of glass and glass work, and execute the glazing of
			 frames, panels, sash and doors, in such a manner that under an agreed
			 specification, acceptable glass work and glazing can be executed, fabricated
			 and installed, and may include the fabrication or installation in any building
			 or structure of frames, glazed-in panels, sash or doors, upon or within which
			 such frames, glazed-in panels, sash or doors, such glass work or glazing has
			 been or can be executed or installed. (3-28-23)
77.
09110 Steel Stud Framing
. A
			 specialty contractor whose primary business includes the ability and expertise
			 to build or assemble steel stud framing systems. (3-28-23)
78.
09200 Lath and Plaster
. A
			 specialty contractor whose primary business includes the ability and expertise
			 to prepare mixtures of sand, gypsum, plaster, quick-lime or hydrated lime and
			 water or sand and cement and water or a combination of such other materials as
			 create a permanent surface coating; including coloring for same and to apply
			 such mixtures by use of a plaster's trowel, brush or spray gun to any surface
			 which offers a mechanical key for the support of such mixture or to which such
			 mixture will adhere by suction; and to apply wood or metal lath or any other
			 materials which provide a key or suction base for the support of plaster
			 coatings; including the light gauge metal shapes for the support of metal or
			 other fire proof lath. Includes metal stud framing. (3-28-23)
79.
09250 Drywall
. A specialty
			 contractor whose primary business includes the ability and expertise to install
			 unfinished and prefinished gypsum board on wood and metal framing and on solid
			 substates; gypsum and cementitious backing board for other finishes;
			 accessories and trim; and joint taping and finishing. (3-28-23)
80.
09300 Tile and Terrazzo
. A
			 specialty contractor whose primary business includes the ability and expertise
			 to examine surfaces and bring such surfaces to a condition where acceptable
			 work can be executed and fabricated thereon by the setting of chips or marble,
			 stone, tile or other material in a pattern with the use of cement, and to grind
			 or polish the same. (3-28-23)
81.
09500 Acoustical Treatment
. A specialty contractor whose primary
			 business includes the installation, application, alteration and repair of all
			 types of acoustical systems, to include acoustical ceilings, wall panels, sound
			 control blocks and curtains, hangers, clips, inserts, nails, staples, related
			 hardware and adhesive, lightweight framing systems and related accessories
			 (electrical excluded), installation and repair of gypsum wall board, painting,
			 accessories, taping and texturing. (3-28-23)
82.
09600 Flooring
. A specialty
			 contractor whose primary business includes the ability and expertise to examine
			 surfaces, specify and execute the preliminary and preparatory work necessary
			 for the installation of flooring, wherever installed, including wood floors and
			 flooring (including the selection, cutting, laying, finishing, repairing,
			 scraping, sanding, filling, staining, shellacking and waxing) and all flooring
			 of any nature either developed as or established through custom and usage as
			 flooring. (3-28-23)
83.
09680 Floor Covering and Carpeting
. A specialty contractor whose primary
			 business includes the installation, replacement and repair of floor covering
			 materials, including laminates and including preparation of surface to be
			 covered, using tools and accessories and industry accepted procedures of the
			 craft. (3-28-23)
84.
09900
			 Painting and Decorating
. A specialty contractor whose primary business
			 includes the ability and expertise to examine surfaces and execute the
			 preliminary and preparatory work necessary to bring such surfaces to a
			 condition where acceptable work can be executed thereon with the use of paints,
			 varnishes, shellacs, stains, waxes, paper, oilcloth, fabrics, plastics and any
			 other vehicles, mediums and materials that may be mixed, used and applied to
			 the surface of buildings, and the appurtenances thereto, of every description
			 in their natural condition or constructed of any material or materials
			 whatsoever that can be painted or hung as are by custom and usage accepted in
			 the building and construction industry as painting and decorating.
			 (3-28-23)
85.
09950 Sand
			 Blasting
. A specialty contractor whose primary business includes the
			 ability and expertise to sand blast surfaces through the use of equipment
			 designed to clean, grind, cut or decorate surfaces with a blast of sand or
			 other abrasive applied to such surfaces with steam or compressed air.
			 (3-28-23)
86.
09960 Specialty
			 Coatings
. A specialty contractor whose primary business includes the
			 surface preparation and installation of specialty coatings. (3-28-23)
87.
10150 Institutional
			 Equipment
. A specialty contractor whose primary business includes the
			 installation, maintenance and repair of booths, shelves, laboratory equipment,
			 food service equipment, toilet partitions, and such other equipment and
			 materials as are by custom and usage accepted in the construction industry as
			 institutional equipment. (3-28-23)
88.
10270 Raised Access
			 Flooring
. A specialty contractor whose primary business includes the
			 installation of wood or metal-framed elevated computer-flooring systems. This
			 does not include the structural floor on which the computer floor is supported
			 or mezzanines. (3-28-23)
89.
10445 Non-Electrical Signs
. A specialty contractor whose primary
			 business includes the installation of all types of non-electrical signs,
			 including but not limited to traffic delineators, mile post markers, post or
			 pole supported signs, signs attached to structures, painted wall signs, and
			 modifications to existing signs. (3-28-23)
90.
11001 Specialty Machinery and
			 Equipment Installation and Servicing
. A specialty contractor whose
			 primary business is the installation, removal, modification or repair of pumps,
			 water and waste water equipment, conveyors, cranes, dock levelers, various
			 hoisting and material handling equipment, trash compactors and weighing scales
			 installation and servicing. This does not include the construction of buildings
			 or roof structures for this equipment. (3-28-23)
91.
11140 Petroleum and Vehicle Service
			 Equipment, Installation and Repair
. A specialty contractor whose primary
			 business includes the installation and repair of underground fuel storage tanks
			 used for dispensing gasoline, diesel, oil or kerosene fuels. This includes
			 installation of all incidental tank-related piping, leak line detectors, vapor
			 recovery lines, vapor probes, low voltage electrical work, associated
			 calibration, testing and adjustment of leak detection and vapor recovery
			 equipment, and in-station diagnostics. This contractor may also install auto
			 hoisting equipment, grease racks, compressors, air hoses and other equipment
			 related to service stations. (3-28-23)
92.
11200 Water/Wastewater and Chemical
			 Treatment
. A specialty contractor whose primary business is the supply,
			 installation and operational startup of equipment and chemicals for chemical
			 treatment of water, wastewater or other liquid systems. (3-28-23)
93.
11485 Climbing Wall Structures and
			 Products
. A specialty contractor whose primary business includes the
			 ability and expertise to design, fabricate and install climbing wall structures
			 and equipment. This does not include concrete foundations or buildings in which
			 the climbing walls may be supported or housed. (3-28-23)
94.
12011 Prefabricated Equipment and
			 Furnishings
. A specialty contractor whose primary business includes the
			 installation of prefabricated products or equipment including but not limited
			 to the following: theater stage equipment, school classroom equipment,
			 bleachers or seats, store fixtures, display cases, toilet or shower room
			 partitions or accessories, closet systems, dust collecting systems, appliances,
			 bus stop shelters, telephone booths, sound or clean rooms, refrigerated boxes,
			 office furniture, all types of pre-finished, pre-wired components, detention
			 equipment and other such equipment and materials as are by custom and usage
			 accepted in the construction industry as prefabricated equipment.
			 (3-28-23)
95.
12490 Window,
			 Wall Coverings, Drapes and Blinds
. A specialty contractor whose primary
			 business includes the installation of decorative, architectural or functional
			 window glass treatments or covering products or treatments for temperature
			 control or as a screening device. (3-28-23)
96.
13110 Cathodic Protection
. A
			 specialty contractor whose primary business is the prevention of corrosion by
			 using special cathodes and anodes to circumvent corrosive damage by electric
			 current. (3-28-23)
97.
13121
			 Pre-Manufactured Components and Modular Structures
. A specialty
			 contractor whose primary business includes the moving, setup, alteration or
			 repair of pre-manufactured components, houses or similar modular structures.
			 (3-28-23)
98.
13125
			 Pre-Engineered Building Kits
. A specialty contractor whose primary
			 business includes the assembly of pre-engineered building kits or structures
			 obtained from a single source. This category is limited to assembly only of
			 pre-engineered metal buildings, pole buildings, sunrooms, geodesic structures,
			 aluminum domes, air supported structures, manufactured built greenhouses or
			 similar structures. This does not include any other categories such as concrete
			 foundations, carpentry, plumbing, heating or cooling, or electrical work.
			 (3-28-23)
99.
13150 Swimming
			 Pools and Spas
. A specialty contractor whose primary business includes
			 the ability to construct swimming pools, spas or hot tubs including excavation
			 and backfill of material, installation of concrete, Gunite, tile, pavers or
			 other special materials used in pool construction. This category also includes
			 the installation of heating and filtration equipment, using those trades or
			 skills necessary for installing the equipment, which may require other licenses
			 including electrical and plumbing. (3-28-23)
100.
13165 Aquatic Recreational
			 Equipment
. A specialty contractor whose primary business includes the
			 ability and expertise to design, fabricate and erect water slides and water
			 park equipment and structures. This does not include any other categories such
			 as concrete foundations, carpentry, plumbing, heating, cooling or electrical
			 work. (3-28-23)
101.
13201
			 Circular Prestressed Concrete Storage Tanks (Liquid and Bulk)
. A
			 specialty contractor whose primary business is the construction of circular
			 prestressed concrete structures post-tensioned with circumferential tendons or
			 wrapped circular prestressing. (3-28-23)
102.
13280 Hazardous Material
			 Remediation
. A specialty contractor whose primary business includes the
			 ability and expertise to safely encapsulate, remove, handle or dispose of
			 hazardous materials within buildings, including but not limited to asbestos,
			 lead and chemicals. Contractors must be properly licensed and certified.
			 (3-28-23)
103.
13290 Radon
			 Mitigation
. A specialty contractor whose primary business and expertise
			 includes the detection and mitigation of Radon gas. (3-28-23)
104.
13800 Instrumentation and
			 Controls
. A specialty contractor whose primary business includes the
			 installation, alteration or repair of instrumentation and control systems used
			 to integrate equipment, sensors, monitors' controls and mechanical operators
			 for industrial processes, building equipment, mechanical devices and related
			 equipment. (3-28-23)
105.
13850 Alarm Systems
. A specialty contractor whose primary business
			 includes the installation, alteration and repair of communication and alarm
			 systems, including the mechanical apparatus, devices, piping and equipment
			 appurtenant thereto (except electrical). (3-28-23)
106.
13930 Fire Suppression Systems
			 (Wet and Dry-Pipe Sprinklers)
. A specialty contractor whose primary
			 business includes the ability and expertise to lay out, fabricate and install
			 approved types of Wet-Pipe and Dry-Pipe fire suppression systems, charged with
			 water, including all mechanical apparatus, devices, piping and equipment
			 appurtenant thereto. Licensure with State Fire Marshal is required.
			 (3-28-23)
107.
13970 Fire
			 Extinguisher and Fire Suppression Systems
. A specialty contractor whose
			 primary business is the installation of pre-engineered or pre-manufactured
			 fixed chemical extinguishing systems primarily used for protecting
			 kitchen-cooking equipment and electrical devices. Contractor also furnishes,
			 installs and maintains portable fire extinguishers. (3-28-23)
108.
14200 Elevators, Lifts and
			 Hoists
. A specialty contractor whose primary business includes the
			 ability to safely and efficiently install, service and repair all elevators,
			 lifts, hoists, including the fabrication, erection and installation of sheave
			 beams, sheave motors, cable and wire rope, guides, cabs, counterweights, doors,
			 sidewalk elevators, automatic and manual controls, signal systems and other
			 devices, apparatus and equipment appurtenant to the installation.
			 (3-28-23)
109.
15100 Pipe
			 Fitter and Process Piping
. A specialty contractor whose primary business
			 is the installation of piping for fluids and gases or materials. This category
			 does not include domestic water, sewage, fire protection and utilities as they
			 are covered under other categories. (3-28-23)
110.
15400 Plumbing
. A specialty
			 contractor whose primary business includes the ability to create and maintain
			 sanitary conditions in buildings, by providing a permanent means for a supply
			 of safe, pure and wholesome water, ample in volume and of suitable temperatures
			 for drinking, cooking, bathing, washing, cleaning, and to cleanse all waste
			 receptacles and like means for the reception, speedy and complete removal from
			 the premises of all fluid and semi-fluid organic wastes and other impurities
			 incidental to life and the occupation of such premises, including a safe and
			 adequate supply of gases for lighting, heating, and industrial purposes.
			 (Licensure with Division of Building Safety is required). (3-28-23)
111.
15510 Boiler and Steam
			 Fitting
. A specialty contractor who installs, services and repairs
			 boilers and associated steam distribution systems. This category is limited to
			 work not requiring a heating, ventilating, and air conditioning (HVAC) license
			 issued by the Division of Building Safety. (3-28-23)
112.
15550 Chimney Repair
. A
			 specialty contractor whose primary business includes the cleaning or repair of
			 multi-type chimneys, flues or emission control devices used to conduct smoke
			 and gases of combustion from above a fire to the outside area.
			 (3-28-23)
113.
15600
			 Refrigeration
. A specialty contractor whose primary business includes
			 the art, ability, experience, knowledge, science and expertise to construct,
			 erect, install, maintain, service and repair devices, machinery and units for
			 the control of air temperatures below fifty (50) degrees Fahrenheit in
			 refrigerators, refrigerator rooms, and insulated refrigerated spaces and the
			 construction, erection, fabrication and installation of such refrigerators,
			 refrigerator rooms, and insulated refrigerator spaces, temperature insulation,
			 air conditioning units, ducts, blowers, registers, humidity and thermostatic
			 controls of any part or any combination thereof, in such a manner that, under
			 an agreed specification acceptable refrigeration plants and units can be
			 executed, fabricated, installed, maintained, serviced and repaired, but does
			 not include those contractors who install gas fuel or electric power services
			 for such refrigerator plants or other units. (3-28-23)
114.
15700 Heating, Ventilation, and
			 Air Conditioning (HVAC)
. A specialty contractor whose primary business
			 includes the installation, alteration and repair of heating, ventilating, and
			 air conditioning (HVAC) systems. Licensure by the Division of Building Safety
			 as an HVAC contractor is required. (3-28-23)
115.
15950 Testing and Balancing of
			 Systems
. A specialty contractor whose primary business includes the
			 installation of devices and performs any work related to providing for a
			 specified flow of air or water in all types of heating, cooling or piping
			 systems. (3-28-23)
116.
16000
			 Electrical
. A contractor engaging in, conducting, or carrying on the
			 business of installing wires or equipment to carry electric current or
			 installing electrical apparatus to be operated by such current. A contractor
			 licensed in this category may perform all work covered in categories defined in
			 Subsection 200.118 of these rules. A
			 contractor in this category must be an electrical contractor, licensed pursuant
			 to Section
			 54-1007(1), Idaho
			 Code. (3-28-23)
117.
16700
			 Communication
. A specialty contractor whose primary business includes
			 the installation, alteration or repair of communication systems (voice, data,
			 television, microwave, and other communication systems). (3-28-23)
118.
16800 Limited Electrical
			 Contractor
. A contractor engaging in, conducting, or carrying on the
			 business of installing, altering, or repairing special classes of electrical
			 wiring, apparatus, or equipment. A contractor in this category must be an
			 electrical specialty contractor, licensed pursuant to Section
			 54-1007(1), Idaho
			 Code, and may perform only that work included within the specialty license.
			 Electrical specialty categories include, but are not limited to: (3-28-23)
a. Elevator, Dumbwaiter, Escalator or
			 Moving-walk Electrical; (3-28-23)
b. Sign Electrical; (3-28-23)
c. Manufacturing or Assembling Equipment;
			 (3-28-23)
d. Limited Energy
			 Electrical License (low voltage); (3-28-23)
e. Irrigation Sprinkler Electrical;
			 (3-28-23)
f. Well Driller and Water
			 Pump Installer Electrical; and (3-28-23)
g. Refrigeration, Heating and Air
			 Conditioning Electrical Installer. (3-28-23)