RULES

The Prevailing Wage Commission hereby issues the following classifications of crafts of workers to be used for workers employed by building contractors and subcontractors. Pursuant to T.C.A. §12-4-405(3)(A), each such craft shall only be assisted by qualified apprentices of the crafts as defined in subparagraph (a) of paragraph (1) of Rule 0800-3-2-.01.

Craft 1 "Boilermaker" means one who assembles, analyzes defects in, and repairs boilers, pressure vessels, tanks, and vats in field, following blueprints and using hand tools and portable power tools and equipment; locates and marks reference points for columns or plates on foundation, using a master straightedge, squares, transit, and measuring tape, and applying knowledge of geometry; attaches rigging or signals crane operator to lift parts to a specified position; aligns structures or plate sections to assembly boiler frame, tanks, or vats, using plumb bobs, levels, wedges, dogs, or turnbuckles; hammers, flame cuts, files, or grinds irregular edges of sections or structural parts to facilitate fitting edges together; bolts or arc-welds structures and sections together; positions drums and headers into supports and bolts or welds supports to frame; aligns watertubes and connects and expands ends to drums and headers, using a tube expander; bells, beads with a power hammer, or welds tube ends to ensure leak proof joints; bolts or welds casing sections, uptakes, stacks, baffles, and such fabricated parts as chutes, air heaters, fan stands, feeding tubes, catwalks, ladders, coal hoppers, and safety hatches to frames, using wrenches; installs manholes, handholes, valves, gauges, and feedwater connection in drums to complete assembly of watertube boilers; assists in testing assembled vessels by pumping water or gas under specified pressure into vessels and observing instruments for evidence of leakage; repairs boilers or tanks in field by unbolting or flame cutting defective sections or tubes, straightening plates, using torches or jacks, installing new tubes, fitting and welding new sections and replacing worn lugs or bolts; may rivet and caulk sections of vessels using pneumatic riveting and caulking hammers; may line firebox with refractory brick and asbestos rope and blocks; may fabricate such parts as stacks, uptakes, and chutes to adapt boiler to premises in which it is installed; assembles boilers, tanks, vats and pressure vessels according to blueprint specifications, using power tools and hand tools; reads blueprints to determine location and relationship of parts; connects firetubes to heads or watertubes to drums and headers of boilers, by expanding and belling ends, using a tube expander and beading ends, using a power hammer; drills and taps holes for installation of studs, using a portable drill; tightens bolts to assemble frames, using hand or power wrenches; mounts casings of watertube boilers, or attaches davit heads, burners or furnace casings to firetube boilers, using wrenches; bolts or screws accessories, such as manholes, handholes, fans, gauges, and valves to vessels, using hand tools or power wrenches; replaces defective parts, using power wrenches, prying bars or hand tools; may install and repair refractory brick; may thread and install stay bolts, using pipe wrenches and dies; may remove and replace rivets and caulk seams to repair riveted shells and structures, using a pneumatic chisel, riveter, and caulking hammer; and may cut out defective parts, using an acetylene torch.

Craft 2 "Bricklayer” means one who performs duties in the following areas:

(i) “Construction” means one who lays building materials, such as brick, structural tile, concrete block, glass, gypsum, and terra cotta block (except stone) to construct or repair walls, partitions, arches, sewers, and other structures; measures distance from reference points and marks guidelines on working surface to lay out work; spreads soft bed (layer) of mortar that serves as a base and binder for block, using a trowel; applies mortar to end of block and positions block in mortar bed; taps block with a trowel to level, align, and embed in mortar, allowing specified thickness of joint; removes excess mortar from face of block, using a trowel; finishes mortar between brick with pointing tool or trowel; breaks brick to fit spaces too small for whole brick, using the edge of a trowel or brick hammer; determines vertical and horizontal alignment of courses, using a plumb bob, gaugeline (tightly stretched cord), and level; fastens brick or terra cotta veneer to face of structures, with tie wires embedded in mortar between bricks, or in anchor holes in veneer brick; may weld metal parts to structural-steel members; and may apply plaster to walls and ceiling, using a trowel to complete repair work.

(ii) “Firebrick and Refractory Tile” means one who lays firebrick and refractory tile to build, rebuild, reline, or patch high-temperature or heating equipment, such as boilers, ovens, furnaces, converters, cupolas, ladles, and soaking pits, according to job orders and blueprints; lays out work, using chalklines, plumb bobs, tapes, squares, and levels; calculates angles and courses for building walls, arches, columns, corners and bottoms; removes burned or damaged brick and cleans surface of setting, using a sledgehammer, pry bar, pneumatic chipping gun, scraper and wire brush; cuts brick to size, using a brick hammer or powered abrasive saw; spreads fire-clay mortar over brick with a trowel and lays brick in place; spreads or sprays refractories over exposed bricks to protect bricks against deterioration by heat, using a trowel or spray gun; positions or bends special frame or hanger over casings to lay arches; cuts, notches, or drills openings to provide outlets, pyrometer mountings, brackets and heating elements, using hand tools; patches or replaces firebrick linings of ladles and furnace tap holes; constructs refractory forms for controlling quantity and flow of molten materials from furnace to rolling machines; may replace bolts, brackets, and heating elements, repair coke oven doors, weld cracks or holes in shells, or perform other repairs; and may pack insulation into shells and frames to insulate heating equipment, such as furnaces, boilers and ovens.

(iii) “Marble Finisher” means one who supplies and mixes construction materials for marble setter; applies grout, and cleans installed marble; moves marble installation materials, tools, machines, and work devices to work areas; mixes mortar, plaster, and grout, as required, following standard formulas and using manual or machine mixing methods; moves mixed mortar or plaster to installation area, manually or using a wheelbarrow; selects marble slabs for installation, following numbered sequence or drawings; drills holes and chisels channels in edges of marble slabs to install metal wall anchors, using a power drill and chisel; bends wires to form metal anchors, using pliers; inserts anchors into drilled holes of marble slab, and secures anchors in place with wooden stake and plaster; moves marble slabs to installation site, using a dolly, hoist, or portable crane; fills marble joints and surface imperfections with grout, using a grouting trowel or spatula, and removes excess grout, using a wet sponge; grinds and polishes marble, using abrasives, chemicals, and manual or machine grinding and polishing techniques; cleans installed marble surfaces, work and storage areas, installation tools, machinery, and work aids, using water and cleaning agents; stores marble, installation materials, tools, machinery, and related items; may modify mixing, material moving, grouting, polishing, and cleaning methods and procedures, according to type of installation or materials; may repair and fill chipped, cracked, or broken marble pieces, using a torch, spatula, and heat sensitive adhesive and filler; may secure marble anchors to studding, using pliers, and cover ends of anchors with plaster to secure anchors in place; may assist marble setter to saw and position marble; and may erect scaffolding and related installation structures.

(iv) “Marble Setter” means one who cuts, tools, and sets marble slabs in floors and walls of buildings and repairs and polishes slabs previously set in buildings; trims, faces and cuts marble to specified size, using power sawing, cutting, and facing equipment and hand tools; drills holes in slabs and attaches brackets; spreads mortar on bottom of slabs and on sides of adjacent slabs; sets block in position, tamps it into place, and anchors bracket attachment with wire; fills joints with grout; removes excess grout from marble with a sponge; cleans and bevels cracks or chips on slabs, using hand tools and power tools; heats cracked or chipped area with a blowtorch and fills defect with composition mastic that matches grain of marble; and polishes marble and other ornamental stone to a high luster, using power tools or by hand.

(v) “Stonemason” means one who sets stone to build stone structures, such as piers, walls and abutments, or lays walks, curbstones, or special types of masonry, such as alberene (acid-resistant soapstone for vats, tanks, and floors), using a mason's tools; shapes stone preparatory to setting, using a chisel hammer, and other shaping tools; spreads mortar over stone and foundation with a trowel and sets stone in place by hand or with the aid of a crane; aligns stone with plumbline and finishes joints between stone with a pointing trowel; may spread mortar along mortar guides to ensure joints of uniform thickness; may clean surface of finished wall to remove mortar, using muriatic acid and a brush; and may set cut and dressed ornamental and structural stone in buildings.

(vi) “Terrazzo Finisher” means one who supplies and mixes construction materials for terrazzo worker; applies grout, and finishes surface of installed terrazzo; moves terrazzo installation materials, tools, machines, and work devices to work areas, manually or using a wheelbarrow; measures designated amounts of ingredients for terrazzo or grout, using graduated containers and a scale, following standard formulas and specifications, and loads portable mixer, using a shovel; mixes materials according to experience and requests from terrazzo worker and dumps mixed materials that form base or top surface of terrazzo into prepared installation site, using a wheelbarrow; applies curing agent to installed terrazzo to promote even curing, using a brush or sprayer; grinds surface of cured terrazzo, using power grinders to smooth terrazzo and prepare for grouting; spreads grout across terrazzo to fill surface imperfections, using a trowel; fine grinds and polishes surface of terrazzo when grout has set, using power grinders; washes surface of polished terrazzo, using a cleanser and water, and applies sealer, according to manufacturer's specifications, using a brush; installs grinding stone in power grinders, using hand tools; cleans installation site, mixing and storage areas, tools, machines, and equipment, using water and various cleaning devices; stores terrazzo installation materials, machines, tools, and equipment; may modify mixing, grouting, grinding, and cleaning procedures according to type of installation or material used; may assist terrazzo worker to position and secure moisture membrane and wire mesh prior to pouring base materials for terrazzo installation; may spread marble chips or other material over fresh terrazzo surface and press into terrazzo, using a roller; may cut divider and joint strips to size as directed; and may cut grooves in terrazzo stairs, using a power grinder, and fill grooves with nonskid material.

(vii) “Terrazzo Worker” means one who applies cement, sand, pigment and marble chips to floors, stairways, and cabinet fixtures to attain durable and decorative surfacing according to specifications and drawings; spreads roofing paper on surface of foundation; spreads mixture of sand, cement, and water over surface with a trowel to form a terrazzo base; cuts metal division strips and presses them into terrazzo base so that top edges form desired design or pattern and define level of finished floor surface; spreads mixture of marble chips, cement, pigment, and water over terrazzo base to form a finished surface, using a float and trowel; scatters marble chips over finished surface; pushes roller over surface to embed chips; allows surface to dry, and pushes electric-powered surfacing machine over floor to grind and polish terrazzo surface; grinds curved surfaces and areas inaccessible to surfacing machine, such as stairways and cabinet tops, with a portable hand grinder; and may precast terrazzo blocks in wooden forms.

(viii) “Tile Finisher” means one who supplies and mixes construction materials for tile setter; applies grout, and cleans installed tile; moves tiles, tile setting tools, and work devices from storage area to installation site manually or using a wheelbarrow; mixes mortar and grout according to standard formulas and requests from tile setter, using a bucket, water hose, spatula, and portable mixer; supplies tile setter with mortar, using a wheelbarrow and shovel; applies grout between joints of installed tile, using a grouting trowel; removes excess grout from tile joints with a wet sponge and scrapes corners and crevices with a trowel; wipes surface of tile after grout has set to remove grout residue and polish tile, using nonabrasive materials; cleans installation site, mixing and storage areas, and installation machines, tools, and equipment, using water and various cleaning tools; stores tile setting materials, machines, tools, and equipment; may apply caulk, sealers, acid steam, or related agents to caulk, seal, or clean installed tile, using various application devices and equipment; may modify mixing, grouting, grinding, and cleaning procedures according to type of installation or material used; may assist tile setter to position and secure metal lath, wire mesh, or felt paper prior to installation of tile; and may cut marked tiles to size, using a power saw or tile cutter.

(ix) “Tile Setter” means one who applies tile to walls, floors, ceilings and promenade roof decks, following design specifications; examines blueprints, measures and marks surfaces to be covered, and lays out work; measures and cuts metal lath to size for walls and ceilings with tin snips; tacks lath to wall and ceiling surfaces with a staple gun or hammer; spreads plaster base over lath with a trowel and levels plaster to specified thickness, using a screed; spreads concrete on subfloor with a trowel and levels it with a screed; spreads mastic or other adhesive base on a roof deck using a serrated spreader to form the base for promenade tile; cuts and shapes tile with tile cutters and biters; and positions tile and taps it with a trowel handle to affix tile to plaster or adhesive base.

Craft 3 "Carpenter" means one who constructs, erects, installs and repairs structures and fixtures of wood, plywood, and wallboard, using a carpenter's hand tools and power tools, and conforming to local building codes; studies blueprints, sketches, or building plans for information pertaining to type of material required, such as lumber or fiberboard, and dimensions of structure or fixture to be fabricated; selects specified type of lumber or other materials; prepares layout, using a rule, framing square, and calipers; marks cutting and assembly lines on materials, using a pencil, chalk and marking gauge; shapes materials to prescribed measurements, using saws, chisels, and planes; assembles cut and shaped materials and fastens them together with nails, dowel pins, or glue; verifies trueness of structure with a plumb bob and carpenter's level; erects framework for structures and lays subflooring; builds stairs and lays out and installs partitions and cabinet work; covers subfloor with building paper to keep out moisture and lays hardwood, parquet, and wood-strip-block floors by nailing floors to subfloor or cementing them to mastic or asphalt base; applies shock-absorbing, sound-deadening, and decorative paneling to ceilings and walls; fits and installs prefabricated window frames, doors, door frames, weather stripping, interior and exterior trim, and finish hardware, such as locks, letterdrops, and kick plates; assembles scaffolding and seals off work area, using plastic sheeting and duct tape; positions a mobile decontamination unit or portable showers at entrance of work area; builds a connecting walkway between a mobile unit or portable showers and work area, using hand tools, lumber, nails, plastic sheeting, and duct tape; constructs forms and chutes for pouring concrete; erects scaffolding and ladders for assembling structures above ground level; may weld metal parts to structural-steel members; when specializing in particular phase of carpentry, is designated according to specialty as combination window installer (construction); when specializing in finish carpentry, such as installing interior and exterior trim, building stairs, and laying hardwood floors, is designated finish carpenter (construction); when erecting frame buildings and performing general carpentry work in residential construction, is designated house carpenter (construction); may remove and replace sections of structures prior to and after installation of insulating materials and be designated building-insulating carpenter (construction; retail trade); may perform carpentry work in construction of walk-in freezers and environmental test chambers and be designated carpenter, refrigerator (service industry machinery); and may be designated: door hanger (construction), finished-hardware erector (construction), garage-door hanger (construction), hardwood-floor installer (construction), jalousie installer (construction), stair builder (construction), trim setter (construction), weather stripper (construction), wood strip-block installer (construction), pile driver, or dock builder. A carpenter may work on resilient floors, computer floors, pedestal floors, carpet installations, siding, acoustical ceilings, metal and wood framing, furniture installation, lathing, scaffold erecting, metal partitions, the disassembly of forms for concrete, counter tops of all materials, plastic laminates, solid surface materials, and toilet partitions.

Craft 4 "Cement Finisher, Plasterer" means one who smoothes and finishes surfaces of poured concrete floors, walls, sidewalks, or curbs to specified textures, using hand tools or power tools, including floats, trowels, and screeds; signals concrete deliverer to position truck to facilitate pouring concrete; moves discharge chute of truck to direct concrete into forms; spreads concrete into inaccessible sections of forms, using a rake or shovel; levels concrete to a specified depth and workable consistency, using a hand held screed and floats to bring the water to the surface to produce a soft topping; smoothes and shapes surfaces of freshly poured concrete, using a straightedge and float or power screed; finishes concrete surfaces, using a power trowel, or wets and rubs concrete with abrasive stone to impart finish; removes rough or defective spots from concrete surfaces, using a power grinder or chisel and hammer, and patches holes with fresh concrete or epoxy compound; molds expansion joints and edges, using edging tools, jointers, and straightedge; may sprinkle colored stone chips, powdered steel, or coloring powder on concrete to produce prescribed finish; may produce rough concrete surface, using a broom; may mix cement, using a hoe or concrete-mixing machine; may direct sub-grade work, mixing of concrete, and setting of forms; may specialize in finishing steps and stairways and be designated a step finisher (construction); and may break up and repair old concrete surfaces, using pneumatic tools, and be designated a cement mason, maintenance (any industry).

Craft 5 "Class A Operator" means one who operates a wide variety of heavy equipment such as but not limited to: backhoes, drag lines, cranes, winches with booms, motor patrols, trenching machines (18″ and over), pile drivers, tug boats, mechanics (heavy), central mixing plants, locomotives, straddle carriers, earth freezing equipment, 3-drum hoists, side booms, dredges, mucking machines, cableways, central compressor plants, derrick boats, concrete pumps, well point systems, self-propelled sweepers, bulldozers, forklifts, and front end loaders; adjusts hand-wheels, depresses pedals and moves levers to drive equipment and control attachments such as blades, buckets, scrapers and swing booms; turns valves to control air and water output of compressors and pumps; and repairs, maintains and services equipment as needed. Various equipment operating engineers may also operate steel and stone handling equipment in connection with erections, machine-handling machinery, cable spinning machines, conveyor loaders, keystones, all types of shovels, derricks, trench shovels, pippin type backhoes, hoists, pavers, milling machines, gradalls, tandem scrapers, drills (self-contained drillmaster type), batch plants with mixer, scrapers and tournapulls, rollers, spreaders, tractors, conveyors, pressure boilers, well drillers, ditch witch type trenchers, concrete breaking machines, fine grade machines, seamen pulverizing mixers, form line graders, road finishing machines, power booms, seed spreaders, grease trucks, compressors, pumps and machines similar to above. Included in this definition are tiremen on power equipment, asphalt plant engineers, maintenance engineers (power boat), firemen, oilers and deck hands (personnel boats), and grease truck helpers.

Craft 6 "Class B Operator" means one who operates a wide variety of equipment such as: trenching machines (less than 18″), tandem rollers, pavers, mobile mixers (rubber tired mobile, mixed on job), back fillers, blade graders, dinkeys (over 10 tons), elevating graders, winches (operated from trucks or tractors without booms and powered other than by the trucks), bituminous distributors, 1 and 2 drum hoists, grout pumps, motor boats, self-propelled earth compactors, finishing machines, and mixers; adjusts hand-wheels, depresses pedals and moves levers to drive equipment and control attachments such as blades, buckets, scrapers and swing booms; turns valves to control air and water output of compressors and pumps; and repairs, maintains and services equipment as needed. Included in this definition are switchmen, brakemen, and firemen.

Craft 7 "Class C Operator" means one who operates a wide variety of equipment such as: air compressors, earth drills, scales, tractors (40 horse power and less), pumps (larger than 4″), and dinkeys (less than 10 tons); adjusts hand-wheels, depresses pedals and moves levers to drive equipment and control attachments; turns valves to control air and water output of compressors and pumps; and repairs, maintains and services equipment as needed. Included in this definition are motor crane drivers and oilers.

Craft 8 "Electrician" means one who plans layout, installs, and repairs wiring, electrical fixtures, apparatus, and control equipment; plans new or modified installations to minimize waste of materials, provide access for future maintenance, and avoid unsightly, hazardous, and unreliable wiring, consistent with specifications and local electrical codes; prepares sketches showing location of wiring and equipment, or follows diagrams or blueprints, ensuring that concealed wiring is installed before completion of future walls, ceilings, and flooring; measures, cuts, bends, threads, assembles, and installs electrical conduit, using tools, such as hacksaw, pipe threader, and conduit bender; pulls wiring through conduit; splices wire by stripping insulation from terminal leads, using a knife or pliers, twisting or soldering wires together, and applying tape or terminal caps; connects wiring to lighting fixtures and power equipment, using hand tools; installs control and distribution apparatus, such as switches, relays, and circuit-breaker panels, fastening in place with screws or bolts, using hand tools and power tools; connects power cables to equipment, such as electric range or motor, and installs grounding leads; lays polyvinyl chloride (PVC) pipe for main feed electric line; and tests continuity of circuit to ensure electrical compatibility and safety of components, using testing instruments, such as ohmmeter, battery and buzzer, and oscilloscope.

Craft 9 "Elevator Constructor" means one who assembles and installs electric and hydraulic freight and passenger elevators, escalators, and dumbwaiters, determining layout and electrical connections from blueprints; studies blueprints and lays out location of framework, counterbalance rails, motor pump, cylinder, and plunger foundations; drills holes in concrete or structural-steel members with portable electric drill; secures anchor bolts or welds brackets to support rails and framework, and verifies alignment with a plumb bob and level; cuts prefabricated sections of framework, rails, and other elevator components to specified dimensions, using an acetylene torch, power saw, and disc grinder; installs cables, counterweights, pumps, motor foundations, escalator drives, guide rails, elevator cars, and control panels, using hand tools; connects electrical wiring to control panels and electric motors; installs safety and control devices; positions electric motor and equipment on top of elevator shaft, using hoists and cable slings; and may be designated according to type of equipment installed as elevator constructor, electric (construction), elevator constructor, hydraulic (construction), or escalator constructor (construction).

Craft 10 "Glazier" means one who installs glass in windows, skylights, store fronts, and display cases, or on surfaces, such as building fronts, interior walls, ceilings, and tabletops; marks outline or pattern on glass, and cuts glass, using a glasscutter; breaks off excess glass by hand or with notched tool; fastens glass panes into wood sash with glazier's points, and spreads and smoothes putty around edge of panes with knife to seal joints; installs mirrors or structural glass on building fronts, walls, ceilings, or tables, using mastic, screws, or decorative molding; bolts metal hinges, handles, locks, and other hardware to prefabricated glass doors; sets glass doors into frames and fits hinges; may install metal window and door frames into which glass panels are to be fitted; may press plastic adhesive film to glass or spray glass with tinting solution to prevent light glare; may install stained glass windows; may assemble and install metal-framed glass enclosures for showers and be designated shower-enclosure installer (construction); and may be designated according to type of glass installed as glazier, structural glass (construction), or plate-glass installer (construction).

Craft 11 "Insulation Worker for Mechanical Trades/Asbestos Worker" means one who applies insulating material* to exposed surfaces of structures, such as air ducts, hot and cold pipes, storage tanks, and cold storage rooms; reads blueprints and selects required insulation material (in sheet, tubular, or roll form) such as fiberglass, foam rubber, styrofoam, cork, or urethane, based on material's heat retaining or excluding characteristics; brushes adhesives on or attaches metal adhesive-backed pins to flat surfaces as necessary to facilitate application of insulation material; measures and cuts insulation material to specified size and shape for covering flat or round surfaces, using a tape measure, knife, or scissors; fits, wraps, or attaches required insulation material around or to structure, following blueprint specifications; covers or seals insulation with preformed plastic covers, canvas strips, sealant, or tape to secure insulation to structure, according to type of insulation used and structure covered, using a staple gun, trowel, paintbrush, or caulking gun; removes asbestos**from ceilings, walls, beams, boilers, and other structures, following hazardous waste handling guidelines; positions portable air evacuation and filtration system inside work area; sprays chemical solution over asbestos covered surfaces, using a tank with an attached hose and nozzle, to soften asbestos; cuts and scrapes asbestos from surfaces, using a knife and scraper; shovels asbestos into plastic disposal bags and seals bags, using duct tape; cleans work area of loose asbestos, using a vacuum, broom, and dust pan; places asbestos in disposal bags and seals bags, using duct tape; dismantles scaffolding and temporary walkway, using hand tools, and places plastic sheeting and disposal bags into transport bags; and seals bags, using duct tape, and loads bags into truck. (*Note: Installation of insulation is also found in other classifications relating to other trades. **Note: Whenever asbestos is removed on any State construction project, all contractors and subcontractors must comply with the Tennessee Occupational Safety and Health Regulations in 29 Code of Federal Regulations 1926.1101.)

Craft 12 "Ironworker" means one who performs any combination of the following duties to raise, place, and unite girders, columns, and other structural-steel members to form completed structures or structure frameworks, working as a member of a crew; sets up hoisting equipment for raising and placing structural-steel members; fastens steel members to cable of hoist, using a chain, cable, or rope; signals worker operating hoisting equipment to lift and place steel members; guides steel members using a tab line (rope) or rides on steel members in order to guide them into position; pulls, pushes, or pries steel members into approximate positions while steel members are supported by hoisting device; forces steel members into final positions, using turnbuckles, crowbars, jacks, and hand tools; aligns rivet holes in steel members with corresponding holes in previously placed steel members by driving drift pins or handle of wrench through holes; verifies vertical and horizontal alignment of steel members, using a plumb bob and level; bolts aligned steel members to keep them in position until they can be permanently riveted, bolted, or welded in place; catches hot rivets tossed by rivet heater (heat treating) in bucket and inserts rivets in holes, using tongs; bucks (holds) rivets while pneumatic riveter uses air-hammer to form heads on rivets; cuts and welds steel members to make alterations, using oxyacetylene welding equipment; may specialize in erecting or repairing specific types of structures and be designated bridge-maintenance worker (construction), chimney builder, reinforced concrete (construction), metal building (construction), or structural-steel equipment erector (construction); positions and secures steel bars in concrete forms to reinforce concrete; determines number, sizes, shapes, and locations of reinforcing rods from blueprints, sketches, or oral instructions; selects and places rods in forms, spacing and fastening them together, using wire and pliers; cuts bars to required lengths, using a hacksaw, bar cutters, or acetylene torch; may bend steel rods with hand tools or rod bending machine; may reinforce concrete with wire mesh; may weld reinforcing bars together, using arc-welding equipment; welds deck pans on a bridge, reinforcing supports for the concrete structure; installs wire, cable, steel and other materials used for the purpose of pre-stressing and post-stressing concrete girders, beams, columns, etc.; loads, unloads, hoists, handles, signals, places and erects all pre-stressed and post-stressed pre-cast material including grouting of post tension cables, glass fiber reinforced concrete panels, including the securing by bolting and/or welding and the installation of steeltex and wire mesh of any type when used for reinforced concrete construction; erects, trims, and fits together by means of bolts and clamps, iron grills, grating, and special stairways; erects ornamental enclosures and other ironwork not included in structural ironwork; fastens ironwork to walls of buildings by means of bolts, brackets, and anchors; fastens newel posts, balusters, and other parts of stairways by fastening to supports or embedding them in sockets; and forges, welds, drills, and cuts as needed.

Craft 13 "Laborer (Class A)" means one who performs any combination of the following duties on construction projects, usually working in a utility capacity, by transferring from one task to another where demands require a worker with varied experience and ability to work without close supervision. Laborers may not assist mechanics in the performance of mechanics' work using tools peculiar to an established trade. Their work is to be confined to the following tasks and operation of various power tools such as but not limited to: jackhammers, air tampers, vibrators, cat-crawlers, chipping hammers, motorized wheel-barrows, concrete saws, motorized posthole diggers, chain saws, air tools, power-driven tools, and mortar mixers. Laborers may have duties as mason tenders, asphalt rakers, form setters, strippers, and tool-room attendants. Included in this definition is one who performs a variety of tasks involving dextrous use of hands and tools such as demolishing buildings, sawing rough lumber, dismantling forms, removing projections from concrete, and mounting pipe hangers (work that is usually performed with other workers); uses a cutting torch for demolition work on steel or other metal structures; on utility projects, lays tile, concrete, or corrugated metal pipe, receiving pipe lowered from top of trench, inserting spigot end of pipe into bell end of last laid pipe, adjusting pipe to line and grade and sealing joints with cement or other sealing compound; assists in the pouring of concrete by spreading concrete, cleaning and caring of cement mason's tools, mixing mortar used in the patching of concrete, and performing other tasks as may be directed by cement mason or plasterer; mixes mortar for working; sets up scaffolding as directed by foreman; assists brickmasons, stonemasons, and blockmasons by preparing mortar mix, either by hand or machine, delivering material to masons on scaffolds, and operating small material moving equipment such as power buggies, hoists, mortar mix pumps and other similar equipment; erects and dismantles bricklayer scaffolds according to directions of mason; mixes plaster to be used in a machine designed to apply plaster to surfaces by means of a hose; handles and maintains hose, placing and moving machine; may service and maintain machine, as necessary; and may also be in charge of cleaning and caring for tools and equipment used in the preparation and application of plaster.

Craft 14 "Laborer (Class B) Unskilled" means one who may not assist mechanics in the performance of mechanics' work using tools peculiar to an established trade. Their work is to be confined to the following manual tasks: digging and filling holes and trenches; loading, unloading and stockpiling materials; cleaning and sweeping; driving stakes; stripping forms; ripping out material which is to be discarded; ground cleanup of roof removal work; roof removal work for demolitions; clearing and grubbing; flagging; operating chippers and/or stump grinders; cleaning, screening and feeding sand to hopper or pot of sandblasting machines; cleaning and preparing surfaces by the use of sandblasting equipment; assisting in setting up drill, assorting drill steels, and inserting drill steel into drill chuck (as wagon, air track, drill and diamond drillers' tender - outside); lubricating drills; cleaning and washing windows; performing landscaping duties including site development, soil preparation, fertilizing, the building of garden accessories, preparation for the installation of garden sprinkler systems, and operating small walking type farm equipment. Their duties shall not include electrical work, fencing, concrete retaining walls, or other work which is generally performed by skilled craftsmen.

Craft 15 "Millwright" means one who installs machinery and equipment according to layout plans, blueprints, and other drawings in an industrial establishment, using hoists, lift trucks, hand tools, and power tools; reads blueprints and schematic drawings to determine work procedures; dismantles machines, using hammers, wrenches, crowbars and other hand tools; moves machinery and equipment, using hoists, dollies, rollers, and trucks; assembles and installs equipment, such as shafting, conveyors, and tram rails, using hand tools and power tools; constructs foundations for machines, using hand tools and building materials, such as wood, cement, and steel; aligns machines and equipment, using hoists, jacks, hand tools, squares, rules, micrometers, and plumb bobs; assembles machines, and bolts, welds, rivets, or otherwise fastens them to foundations or other structures, using hand tools and power tools; may operate engine lathe to grind, file, and turn machine parts to dimensional specifications; may repair and lubricate machines and equipment; may install robot and modify its program, using a teach pendant; and may perform installation and maintenance work as part of team of skilled trades workers.

Craft 16 "Painter/Plaster" means one who applies coats of paint, varnish, stain, enamel, or lacquer to decorate and protect interior or exterior surfaces, trimmings, and fixtures of buildings and other structures; reads work orders or receives instructions from supervisor regarding painting; smoothes surfaces, using sandpaper, brushes, or steel wool, and removes old paint from surfaces (to include lead based paint), using paint remover, scraper, wire brush, or blowtorch to prepare surfaces for painting; fills nail holes, cracks, and joints with caulk, putty, plaster, or other filler, using a caulking gun and putty knife; selects premixed paints, or mixes required portions of pigment, oil, and thinning and drying substances to prepare paint that matches specified colors; removes fixtures, such as pictures and electric switchcovers from walls prior to painting, using a screwdriver; spreads dropcloths over floors and room furnishings, and covers surfaces, such as baseboards, door frames, and windows with masking tape and paper to protect surfaces during painting; paints surfaces, using brushes, spray guns, or paint rollers; simulates wood grain, marble, brick, or tile effects; applies paint with cloth, brush, sponge, or fingers to create special effects; erects scaffolding or sets up ladders to perform tasks above ground level; may be designated according to type of work performed as: painter, interior finish (construction); painter, maintenance (any industry); or according to type of material used as calciminer (construction); or varnisher (construction); may also hang wallpaper and fabrics; may wash surfaces prior to painting with mildew remover, using a brush; may apply drywall finish to work which will include, but not be limited to the preparation or leveling of any surface or substrate which is to receive a coating, finish and/or wall covering for all levels of finishing and/or spackling of all surfaces, including gypsum wallboard taping and finishing, fire taping and all firestopping systems, glaze coatings, skim coating or any other finishing system, spotting of nails, finishing of corner beads/flex beads, patching and sanding that is within the system of preparing surfaces for finishes, and all stucco and dryvit systems; applies coats of plaster to interior walls, ceilings, and partitions of buildings, to produce finished surface, according to blueprints, architect's drawings, or oral instructions, using hand tools and portable power tools; directs workers to mix plaster to desired consistency and to erect scaffolds; spreads plaster over lath or masonry base, using a trowel, and smoothes plaster with a darby and float to attain uniform thickness; sprays fireproof insulation onto steel beams; applies scratch, brown, or finish coats of plaster to wood, metal, or board lath successively; roughens undercoat with scratcher (wire or metal scraper) to provide bond for succeeding coats of plaster; creates decorative textures in finish coat by marking surface of coat with a brush and trowel or by spattering surface with pebbles; may install lathing; may mix mortar; may install guide wires on exterior surface of buildings to indicate thickness of plaster to be applied; may install precast ornamental plaster pieces by applying mortar to back of pieces and pressing pieces into place on wall or ceiling; molds and installs ornamental plaster panels and trim, and runs (casts) ornamental plaster cornices and moldings by either of the following methods: spreads freshly mixed plaster on table or in forms with a trowel when molding and installing ornamental trim; shapes plaster by hand, using a template and cuts trim to size after plaster has hardened; applies coat of plaster to wall and presses trim into position; nails wooden strips to wall and ceiling to serve as guide for template when casting (running) cornices or moldings; applies plaster to wall or ceiling, using a trowel, or pushes template over plaster striking off excess plaster until desired shape and smoothness of molding is obtained; applies weatherproof, decorative covering of portland cement or gypsum plaster to outside building surfaces, using hand tools; decorates final or finish coat by marking coat with sand, or with a brush or trowel, or by spattering with small stones; may nail wire mesh, lath, or similar material to outside surfaces to serve as binding device to hold stucco in place; may apply stucco, using a spray gun; and may install guide wires on surface of buildings to indicate thickness of stucco to be applied.

Craft 17 "Plumber/Pipe Fitter/Steam Fitter/Sprinkler Fitter" means one who lays out, assembles, installs, and maintains pipe systems, pipe supports, and related hydraulic and pneumatic equipment for steam, hot water, heating, cooling, lubricating, sprinkling, and industrial production and processing systems, applying knowledge of system operation, and following blueprints; selects type and size of pipe, and related materials and equipment, such as supports, hangers, and hydraulic cylinders, according to specifications; inspects work site to determine presence of obstructions and to ascertain that holes cut for pipe will not cause structural weakness; plans installation or repair to avoid obstruction and to avoid interfering with activities of other workers; cuts pipe, using saws, pipe cutter, hammer and chisel, cutting torch and pipe cutting machine; threads pipe, using a pipe threading machine; bends pipe, using pipe bending tools and pipe bending machine; assembles and installs a variety of metal and nonmetal pipes, tubes, and fittings, including iron, steel, copper, and plastic; connects pipes, using threaded, caulked, soldered, brazed, fused, or cemented joints and hand tools; secures pipes to structure with brackets, clamps, and hangers, using hand tools and power tools; installs and maintains hydraulic and pneumatic components of machines and equipment, such as pumps and cylinders, using hand tools; installs and maintains refrigeration and air-conditioning systems, including compressors, pumps, meters, pneumatic and hydraulic controls, and piping, using hand tools and power tools, and following specifications and blueprints; increases pressure in pipe system and observes connected pressure gauge to test system for leaks; may weld pipe supports to structural-steel members; may operate machinery to verify repair; may modify programs of automated machinery, such as robots and conveyors, to change motion and speed of machine, using a teach pendant, control panel, or keyboard and display screen of robot controller and programmable controller; may be designated steam fitter when installing piping systems that must withstand high pressure; assembles, installs, and repairs pipes, fittings, and fixtures of heating, water, and drainage systems, according to specifications and plumbing codes; studies building plans and working drawings to determine work aids required and sequence of installations; inspects structure to ascertain obstructions to be avoided to prevent weakening of structure resulting from installation of pipe; locates and marks position of pipes and pipe connections and passage holes for pipes in walls and floors, using a ruler, spirit level, and plumb bob; cuts openings in walls and floors to accommodate pipe and pipe fittings, using hand tools and power tools; cuts and threads pipe, using pipe cutters, cutting torch, and pipe-threading machine; bends pipe to required angle by use of pipe-bending machine or by placing pipe over block and bending it by hand; assembles and installs valves, pipe fittings, and pipes composed of metals, such as iron, steel, brass, lead, and nonmetals, such as glass, vitrified clay, and plastic, using hand tools and power tools; joins pipes by use of screws, bolts, fittings, solder, plastic solvent, and caulks joints; fills pipe system with water or air and reads pressure gauges to determine whether system is leaking; installs and repairs plumbing fixtures, such as sinks, commodes, bathtubs, water heaters, hot water tanks, garbage disposal units, dishwashers, and water softeners; repairs and maintains plumbing by replacing washers in leaky faucets, mending burst pipes, and opening clogged drains; may weld holding fixtures to structural-steel members; tests, adjusts and balances heating and cooling pipe systems in commercial and industrial buildings, using specialized tools and equipment to attain performance standards specified in system design; adjusts flow control valves in piping to balance system, using hand tools such as pliers, screwdrivers, and wrenches; works with balancing personnel to perform tests to see if the heating and cooling systems are operating to specifications and to detect malfunctions in piping system component parts; as a sprinkler fitter, installs and maintains all fire protection and fire control systems including the unloading, handling by hand power equipment and installation of all piping or tubing, appurtenances and equipment pertaining thereto, including both overhead and underground water mains, fire hydrants and hydrant mains, standpipes and hose connections to sprinkler systems, sprinkler tank heaters, air lines and thermal systems used in connection with sprinkler and alarm systems, also all tanks and pumps connected thereto, also included shall be carbon dioxide (CO₂) and cardox systems, dry chemical systems, foam systems, halon and all other fire protection systems, the locating of and cutting or coring of all holes for piping and the setting of all sleeves and inserts required for the installation of the work.

Craft 18 "Roofer" means one who covers roofs with roofing materials other than sheet metal, such as composition shingles or sheets, wood shingles, or asphalt and gravel, to waterproof roofs; cuts roofing paper to size, using a knife, and nails or staples it to roof in overlapping strips to form base for roofing materials; aligns roofing material with edge of roof, and overlaps successive layers, gauging distance of overlap with chalkline, gauge on shingling hatchet, or by lines on shingles; fastens composition shingles or sheets to roof with asphalt, cement, or nails; punches holes in slate, tile, terra cotta, or wooden shingles, using a punch and hammer; cuts strips of flashing and fits them into angles formed by walls, vents, and intersecting roof surfaces; when applying asphalt or tar and gravel to roof, mops or pours hot asphalt or tar onto roof base; applies alternate layers of hot asphalt or tar and roofing paper until roof covering is as specified; applies gravel or pebbles over top layer, using a rake or stiff-bristled broom; may construct and attach prefabricated roof sections to rafters; may attach shingles to exterior walls and apply roofing paper and tar to shower pans, decks, and promenades to waterproof surfaces; installs insulation in connection with roofer's work; sprays roofs, sidings, and walls with urethane or polyurethane foam to bind, seal, insulate, or soundproof sections of structures; flips switches to start generator, air compressor, and heaters; turns nozzle on spray gun to obtain specified consistency of mixture; directs foam onto surfaces, and determines thickness of foam, using a probe; and connects hose of nitrogen tank to spray compound supply tank when spraying is completed, and turns valves to inject nitrogen into supply tank to prevent crystallization of compounds in tank.

Craft 19 "Sheet Metal Worker" means one who plans, lays out, fabricates, assembles, installs, and repairs sheet metal parts, equipment, and products, utilizing knowledge of working characteristics of metallic and nonmetallic materials, machining, and layout techniques using hand tools, power tools, machines, and equipment; reads and interprets blueprints, sketches, or product specifications to determine sequence and methods of fabricating, assembling, and installing sheet metal products; selects gauge and type of sheet metal, such as galvanized iron, copper, steel, aluminum, or nonmetallic materials such as plastics or fiberglass, according to product specifications; lays out and marks dimensions and reference lines on material, using scribers, dividers, squares, and rulers, applying knowledge of shop mathematics and layout techniques to develop and trace patterns of products or parts or using templates; sets up and operates fabricating machines, such as shears, brakes, presses, forming rolls, and routers, to cut, bend, block and form, or straighten materials; shapes metal material over anvil, block, or other form, using hand tools; trims, files, grinds, deburrs, buffs, and smoothes surfaces, using hand tools and portable power tools; welds, solders, bolts, rivets, screws, clips, caulks, or bonds component parts to assemble products, using hand tools, power tools, and equipment; installs assemblies in supportive framework according to blueprints, using hand tools, power tools, and lifting and handling devices; inspects assemblies and installation for conformance to specifications, using measuring instruments, such as calipers, scales, dial indicators, gauges, and micrometers; repairs and maintains sheet metal products; may operate computer-aided-drafting (CAD) equipment to develop scale drawings of product or system; may operate laser-beam cutter or plasma arc cutter to cut patterns from sheet metal; installs sheet metal duct work to facilitate the movement of air; and frequently specializes in such areas as ventilation and air-conditioning, restaurant equipment, and architectural sheet metal work.

Craft 20 "Truck Driver (3 or More Axles)" means one who operates trucks with 3 or more axles, dump trucks over 6 yards, dumpsters, semi-trailers, tandems escort and pilot vehicles, flat body material trucks, form trucks, greasers and steamers, rubber tired towing and pushing vehicles, A-grames, agitators or mixers, asphalt distributors, low-boys, batch trucks, euclid type or similar off-highway equipment, off-highway tandem back-dumps, specialized earth moving equipment, twin engine equipment, double-hitched equipment, and equipment similar to above.

Craft 21 "Truck Driver (2 Axles, Over 1 Ton)" means one who operates trucks with 2 axles over 1 ton, and 5 yard dump trucks.

Craft 22 "Truck Driver (2 Axles, 1 Ton and Less)" means one who operates small trucks such as panel trucks and pickups.