WC & EL / PART TWO / CLASSIFICATION CODE INTERPRETATIONS

Code 2002 applies to employers engaged in manufacturing a variety of pasta products whose main ingredients are water and flour.  Also contemplated by this classification is manufacturing of noodles in which eggs are added as an ingredient to the mixture in the production.  The mixture is formed into dough, kneaded and rolled into sheets.  It is then cut to the desired size and shape and dried.  This classification includes stuffing pasta to make ravioli, tortellini and manicotti with manual or automated machinery.

Includes employees engaged in sharpening or repairing ice skates, lawn mowers or cutlery.

Code 3632 applies to employers engaged in manufacturing and repairing miscellaneous machines as well as general job machining of finished products and parts when such machines, operations, products or parts are not specifically described by another classification.  Shops engaged in the repair or machining of automobile parts such as engine blocks, brake drums and bumpers, lawn mowers and snow blowers are also included under this classification.

The basic operations consist of the machining of ferrous and non-ferrous metals in various forms, other than sheet metal, including bars, rods, castings and forgings.  The machining operations are performed using equipment such as lathes, shapers, milling machines, planers, metal saws, boring mills, drill presses and grinders.  In conjunction with the manufacture of machines or other finished products, the operations also include incidental assembly of parts or components by welding, riveting or by hand as well as any incidental finishing by polishing, painting or electroplating.

• Button or buttonhole machinery manufacturing
• Commercial sewing machine manufacturing
• Explosives or ammunition – project or shell
• Ship building – iron or steel – machine shop – other than maintenance shop

1. Foundry operations. Refer to Code 3081 “Foundry – NOC – Ferrous,” or Code 3085 “Foundry – Non-Ferrous.”

2. Manufacturing:

   1. Electric motors for commercial sewing machines. Refer to Code 3643 “Electric Power or Transmission Equipment Mfg.”
   2. Electric motors for household sewing machines. Refer to Code 3179 “Electrical Apparatus Mfg. – NOC.”
   3. Sewing machines – household. Refer to Code 3179 “Electrical Apparatus Mfg. – NOC.”
   4. Sewing machine attachments only. Refer to Code 3113 “Tool Mfg. – NOC – Not Drop or Machine Forged.”

3. Precision machined parts manufacturing provided that not less than 50% of all machining operations performed on these parts are held to final tolerances of .001 or closer as verified by the employer’s plans or specifications.  Refer to Code 3629 “Precision Machined Parts Mfg. – NOC.”

Operations include repair of machinery and parts sales at the employer’s premises.

Code 8107 applies to employers engaged in selling new or used machinery of the type which is “Not Otherwise Classified (NOC)” in this Manual.  This classification contemplates the receipt and storage of machinery, parts and accessories, and store or yard sales and delivery.

This classification includes parts and accessories departments.  Individuals employed in these departments who engage in duties such as waiting on customers, handling parts and taking physical inventories are classified to this classification.  Also included in this classification is demonstration and service or repair operations at or away from the dealer’s premises.

Machinery such as construction, commercial

1. Leasing:
   1. Farm machinery with operators.  Refer to Code 0050 “Farm Machinery Operation – By Contractor – All Operations to Completion & Drivers.”
   2. Farm machinery without operators.  Refer to Code 8116 “Farm Machinery Dealer – All Operations & Drivers.”
   3. Mobile cranes with operators.  Refer to Code 9534 “Mobile Crane and Hoisting Service Contractors – NOC – All Operations to Completion & Drivers.”
2. Sales:
   1. Agricultural or Farm Machinery on a retail or wholesale basis.  Refer to Code 8116 “Farm Machinery Dealer – All Operations & Drivers.”
   2. Gas or oil well supplies or equipment – used.  Refer to Code 8263 “Junk Dealer & Drivers.”

Code 3724 applies to employers engaged in the erection or installation of electrical apparatus, machinery or equipment such as, but not limited to, compressors, motors, or air conditioning systems at the customer’s premises.

Machinery, equipment and electrical apparatus installation usually involves assembling units using hand operated tools and connecting and testing to ensure proper working conditions.

This classification also contemplates the erection of oil stills and the incidental structures or connections which are integral parts of the distillation units such as control pumps and compressor houses.

This classification also includes contractors engaged in disassembling machinery, equipment, or electrical apparatus and transporting, rigging and reassembling at a new site.

• Heating, ventilating and air conditioning systems
• Overhead garage doors
• Stage lighting
• Commercial kitchen equipment
• Generators and transmission equipment
• Pneumatic or hydraulic machinery
• Commercial laundry machinery
• Commercial textile or sewing machines

1. Contractors engaged in chimney construction.  Refer to Code 5000 “Chimney Construction – Not Metal – All Operations to Completion.”    

2. Erection of poles, stringing of wires, installation of service transformers on poles or on the outside of buildings and making of service connections.  Refer to Code 7538 “Electric Light or Power Line Construction – All Operations to Completion & Drivers.”    

Code 3737 applies to employers engaged in servicing or repairing electrical apparatus, machinery or equipment at their customers’ premises.  The service and repair operations consist of tearing down units, replacing worn or broken parts such as gears, shafts, controls, etc., and cleaning, adjusting, oiling and testing when completed.  Repairs are usually done with the aid of hand tools or power hand tools. 

This classification includes the service or repair at the employer’s customers’ locations of machinery, equipment or electrical apparatus.

Machinery/ Equipment:     

• Heating, ventilating and air conditioning systems
• Overhead garage doors
• Stage lighting
• Commercial kitchen equipment
• Generators and transmission equipment
• Pneumatic or hydraulic machinery
• Commercial laundry machinery
• Commercial textile or sewing machines
 

1. Erection or installation of machinery or electrical apparatus equipment at the customer’s premises.  Refer to Code 3724 “Machinery or Equipment Erection or Installation – NOC – All Operations to Completion & Drivers.”

Applies to audio or visual media manufacturing and recording tape or disc manufacturing.

Code 4431 applies to employers engaged in manufacturing removable recording or storage media used in audio or visual devices such as phonograph records, cassettes, videotapes, CDs, DVDs, and other recording media. 

Manufacturing phonograph records involves raw materials such as polymer, shellac, or vinyl which are ground and mixed, melted, and worked into a plastic consistency on hot rolls.  The resultant strips and sheets are then placed into heated record presses and compressed to form the records.  After the records have hardened and cooled, they are inspected, tested, labeled and packaged for shipment to the employer’s customers.

Cassettes and videotapes are manufactured through a process of polymerization in a clean-room environment.  The tape is coated with a ferromagnetic material and then wound in a protective plastic shell.  CDs and DVDs are manufactured from a polycarbonate material using an injection mold and vacuum evaporation process.  

Manufacturing or assembling audio or visual recording equipment such as tape recorders, video camcorders and projectors whether household or commercial type are assigned to Code 4923 “Photographic Supplies Mfg.” 

1. Manufacturing:
   1. Cassette or compact disc players or recorders.  Turntables – mechanism, reproducers or tone arms.  Jukebox – music – coin operated.  Refer to Code 3681 “Television, Radio, Telephone or Telecommunication Device Mfg. – NOC.” 
   2. Jukeboxes – computer peripheral type.  Refer to Code 3574 “Office, Computing or Recording Machine Mfg. – NOC.”
   3. Recording on master records and reproducing stock tapes – no record manufacturing.  Recording studios including radio commercials.  Refer to Code 4352 “Engraving.”

Shall not be assigned to an employer in operations described by another classification unless the operations subject to Code 8800 are conducted as a separate and distinct business.

Code 8800 applies to employers that prepare mailing lists and arrange in addressing and mailing material with respect to such lists.   Such businesses have employees who accumulate names and assign them to specific mailing lists in addition to addressing and mailing material such as but not limited to, newspapers, magazines, letters and circulars.  The incidental printing of the material to be mailed is included.   

This classification includes letter service shops and employers that receive outgoing mail from their customers and sort it by zip code.  Once sorted, the mail is delivered by the employer to the post office.  These operations may have large computer data centers where the mailing list is manipulated to eliminate duplicate records, append change of address information, standardize the address to meet postal requirements, add information to aid in delivery (bar code or zip + 4), and finally sort the records in postal sequence.  Once manipulated, the mailing list may also be used to print personalized letters and envelopes on high-speed laser printers.

1. Printing of material for others that does not require any mailing or addressing, or the addressing or mailing is the minor operation.  Refer to Code 4299  “Printing.”

2. Messenger Service Companies:
   1. Delivering mail, parcels or packages by vehicle (parcels or packages must be less than100 lbs.).   Refer to Code 7231 “Messenger Service Companies – Delivering Mail, Parcels or Packages – All Employees & Drivers.”
   2. Delivering envelopes, parcels, or packages by foot or bicycle.  Refer to Code 8742 “Salespersons, Collectors or Messengers – Outside.”

Applies to interior construction work only.

Code 5348 applies to employers engaged in installation of tiles made from stone, mosaic, terrazzo or ceramic onto interior walls and floors.  The employer first levels the floor with a base of sand and cement and the tiles are then set in cement.  After the tile is secured on the floor, grout is applied and then cleaned by hand. 

The lining of brewery tanks with asphaltum (black asphalt paint) is contemplated within the scope of this classification.  Troweled flooring such as oxychloride cements, asphaltic compositions, neoprene’s, epoxies, and acrylics are also contemplated by this classification.

Some employers may also install marble, granite or limestone fireplace mantels inside residences or commercial locations.
 

1. Fireproof tile construction, installation of stone or brick floors.  Refer to Code 5022 “Masonry – NOC – All Operations to Completion.”

Refer to Rule XI U.S. Longshore and Harbor Workers’ Act Section (A) General Explanation.

Code 6836 applies to employers engaged in providing waterfront facilities for recreational boats of various sizes, from small inboard and outboard motorboats to seagoing yachts.  This classification includes the operation of boat docks, storage facilities, repair shops, and marine railways.   

Marinas usually have some boat handling equipment but leave the heavy handling work to the repair and storage yards.  The amount of equipment that they install or provide may sometimes depend upon the proximity of other yards capable of hauling out boats of all types and sizes.  However, they usually have a boom hoist, jib crane or other small boat hoisting rig for launching and recovery.  A marina provides any of a variety of services for boats and boat owners such as in-season wet and dry berthing, winter storage, limited repair facilities and maintenance, launching for transients, marine supplies stores, fuel and fueling equipment, dockside electricity, fresh water, restrooms and showers, clubhouse or administration buildings, and automobile parking space.

Certain marina customers may moor their vessels in water some distance from the marina.  The marina may transport these customers to their vessels using watercraft.  These operations may be assigned to this classification.  However, caution should be exercised in assigning these transportation operations to these marina classifications since coverage for these operations may fall under Admiralty Law jurisdiction.

Boat yards – hauling, repairing, selling gas and storage

1. Boat building:
   1. Not exceeding 150 feet in length.  Refer to Code 6834 “Boat Building or Repair & Drivers – Coverage Under State Act Only” and Code 6824F “Boat Building or Repair & Drivers – Coverage Under U.S. Act.”
   2. Or repair of wood boats exclusively.  Refer to Code 6801F “Boat Building – NOC – Wood & Drivers – Coverage Under U.S. Act.”
2. Boat rental or livery.  Refer to Code 7038 “Boat Livery – Boats Under 15 Tons – Program I,” Code 7090 “Boat Livery – Boats Under 15 Tons – Program II – State Act,” and Code 7050 “Boat Livery – Boats Under 15 Tons – Program II – USL Act.”
3. Boat salespersons selling boats.  Refer to Code 8748 "Automobile Salespersons."
4. Lifeguards - swimming pool operation.  Refer to Code 9015 "Baths."
5. Marina Coverage - Under U.S Act.  Refer to Code 6826F "Marina & Drivers - Coverage Under U.S. Act." 
6. Store operations.  Refer to the applicable store classification.
7. Restaurants.  Refer to Code 9071 “Restaurant – Full-Service – Including Entertainers and/or Musicians,” Code 9072 “Restaurant – Fast Food & Drivers,” and Code 9074 “Bar, Dance Club, Lounge, Nightclub or Tavern – Including Entertainers and/or Musicians.”

Refer to Rule XI U.S. Longshore and Harbor Workers’ Act Section (A) General Explanation.

Code 6826F applies to employers engaged in providing waterfront facilities for recreational boats of various sizes, from small inboard and outboard motorboats to seagoing yachts.

Marinas usually have some boat handling equipment but leave the heavy handling work to the repair and storage yards.  The amount of equipment that they install or provide may sometimes depend upon the proximity of other yards capable of hauling out boats of all types and sizes.  However, they usually have a boom hoist, jib crane or other small boat hoisting rig for launching and recovery.  A marina provides any of a variety of services for boats and boat owners such as in-season wet and dry berthing, winter storage, limited repair facilities and maintenance, launching for transients, marine supplies stores, fuel and fueling equipment, dockside electricity, fresh water, restrooms and showers, clubhouse or administration buildings, and automobile parking space.

Certain marina customers may moor their vessels in water some distance from the marina.  The marina may transport these customers to their vessels using watercraft.  These operations may be assigned to this classification.  However, caution should be exercised in assigning these transportation operations to these marina classifications since coverage for these operations may fall under Admiralty Law jurisdiction.

1. Boat building:

   1. Not exceeding 150 feet in length.  Refer to Code 6834 “Boat Building or Repair & Drivers – Coverage Under State Act Only” and Code 6824F “Boat Building or Repair & Drivers – Coverage Under U.S. Act.”

   2. Or repair of wood boats exclusively.  Refer to Code 6801F “Boat Building – NOC – Wood & Drivers – Coverage Under U.S. Act.”

2. Boat building or repair of wood boats exclusively.  Refer to Code 6801F “Boat Building – Wood & Drivers – Coverage Under U.S. Act.”

3. Boat salespersons selling boats.  Refer to Code 8748 "Automobile Salespersons."

4. Lifeguards – swimming pool operation.  Refer to Code 9015 “Baths.”

5. Marina operation - State Act Only.  Refer to Code 6836 “Marina & Drivers – Coverage Under State Act Only.” 

6. Store operations. Refer to the applicable store classification. 

7. Boat rental or livery.  Refer to Code 7038 “Boat Livery – Boats Under 15 Tons – Program I,” Code 7090 “Boat Livery – Boats Under 15 Tons – Program II – State Act,” and Code 7050 “Boat Livery – Boats Under 15 Tons – Program II – USL Act.”

8. Restaurants.  Refer to Code 9071 “Restaurant – Full-Service – Including Entertainers and/or Musicians,” Code 9072 “Restaurant – Fast Food & Drivers,” and Code 9074 “Bar, Dance Club, Lounge, Nightclub or Tavern – Including Entertainers and/or Musicians.”

Code 5022 applies to employers engaged in masonry work for residential, commercial and industrial construction.  The employers may use materials such as brick, stone (natural and artificial), marble, cinder block, slate, gravel, aggregate sand, lime, cement and glass block.  The operation process may consist of bricklaying, stone setting, marble setting and other stonework.

This classification applies to specialist contractors engaged in fireplace construction, chimney construction for one or two-story residences, installation of interior partitions of hollow fireproof tiles, installation of gypsum blocks or bricks, exterior building caulking, boiler brickwork, masonry repair and relining of blast furnaces, masonry or tile silo erection, sawing of concrete block walls and waterproofing of building exteriors by use of trowels

Tuck pointing or brick pointing of residential chimneys or building exterior walls is included under this classification.  Tuck pointing is the repair of brickwork such as the sealing of cracks with mortar and cement.  The employer may also replace damaged bricks or reset existing loose brick.

Grout – exterior surfaces

1. Tuck pointing or brick pointing of commercial or industrial chimneys.  Refer to Code 5000 “Chimney Construction – Not Metal – All Operations to Completion.”

2. Construction of floors, driveways, yards or sidewalks.  Refer to Code 5221 “Concrete or Cement Work – Floors, Driveways, Yards or Sidewalks – All Operations to Completion & Drivers.”

3. Construction of concrete bridges or culverts.  Refer to Code 5222 “Concrete Construction in Connection with Bridges or Culverts – All Operations to Completion.”

Code 2095 and Code 2089 “Packing House – All Operations” shall not be assigned to the same risk unless the operations described by these classifications are conducted as separate and distinct businesses.  No butchering or handling of livestock.

Code 2095 applies to employers engaged in manufacturing meat products.  Dressed meats, sausage casings and spices are received from others.  Meats are cleaned and processed by cooking, smoking, pickling or curing, packaged and stored.  Meats or sausages may be cooked in large vats, packed in cans, bottles or jars and sealed.

Smoked meat products – sliced or whole

1. Curing, pickling or smoking seafood – not vessels.  Refer to Code 2101 “Fish Curing.”

2. Sausage casing dealers who receive casings already cleaned and only flush them with water for testing purposes, then measure, sort, salt, and repack them for shipment.  Refer to Code 8018 “Wholesale Store – NOC.”

3. Slaughtering livestock with further processing of meats and distribution as performed by a packing house.  Refer to Code 2089 “Packing House – All Operations.”

4. Slaughtering only – no processing of meats.  Refer to Code 2081 “Butchering.”
                  

Applies to employers engaged in local delivery of envelopes, parcels or packages by vehicle and/or bicycle. Parcels or packages must be limited to 100 pounds or less.

Code 7231 applies to employers engaged in delivery of envelopes, parcels or packages by vehicle and/or bicycle when none of the packages exceed 100 pounds in weight.  Envelopes can be individually delivered to each addressee, bundled in sacks, pouches or open plastic mail carrying baskets. 

The operations consist of picking up items at the customer’s location for immediate delivery to the recipient as well as picking up at the customer’s or other sites and sorting by destination for delivery along local routes. 

Most packages or parcels delivered by employers subject to this classification weigh 5 pounds or less, seldom reach 20 pounds and only rarely approach the 100-pound limit.

This classification is not to be used in any case where the employer owns the items being delivered.

1. Foot delivery of envelopes, parcels or packages.  Refer to Code 8742 “Salespersons, Collectors or Messengers – Outside.”

2.  Delivery of merchandise exclusively for retail stores to their customers’ homes, regardless of the weight of individual packages.  Refer to Code 7197 “Trucking – Parcels or Packages – Home Delivery From Retail Stores & Drivers.”

3. Messengers who deliver their own goods.  Refer to Code 7380 “Drivers, Chauffeurs and Their Helpers.”

4. Messenger service companies delivering packages or parcels that weigh more than 100 pounds. Delivery service companies under contract with fulfillment centers that deliver parcels and/or packages to their customers’ designated location regardless of parcel or package size. Refer to Code 7219 “Trucking – NOC – All Employees & Drivers.”

Includes the collection and reduction of non-ferrous scrap metals.  Shall not be assigned to an employer engaged in operations described by another classification unless the operations subject to Code 8500 are conducted as a separate and distinct business.

Code 8500 applies to employers engaged in operations of collecting and reducing non-ferrous metal scrap.  Non-ferrous is defined as brass and copper scrap.  The employer will pick up non-ferrous metal scrap at the customer’s location or the customer may bring the non-ferrous metal scrap to the employer’s location.  Businesses as such may also collect and reduce iron or steel scraps (ferrous metals) provided the iron or steel scrap comprises less than 80% of the total weight of all materials handled.  At the employer’s site, items consisting of non-ferrous scrap metal are sorted, weighed and sold to metal recyclers.

Aluminum, bronze, red or white lead scrap, refining, smelting and reclaiming or recycling brass or copper

1. Collecting and hauling garbage.  Refer to Code 9403 “Garbage, Ashes or Refuse Collection & Drivers.”

2. Collecting, buying, and selling used:
   1. Iron or steel scrap.  Refer to Code 8265 “Iron or Steel Scrap Dealer & Drivers.”
   2. Paper stock, rags, bottles, bones, plastic, or rubber stock 80% of which consists of paper stock, rags, bottles, bones or rubber stock.  Refer to Code 8264 “Bottle, Rubber, Paper Stock or Rag Dealer – Second-Hand & Drivers.”
   3. Variety of paper stock, rags, bottles, bones, rubber stock, plastic, or metal and some iron or steel scrap.  Refer to Code 8263 “Junk Dealer & Drivers.”

Applicable to mass produced stamped metal articles using hand-fed or semi-automatic punch presses. 

Code 3400 applies to employers engaged in manufacturing metal stamped products or parts which are usually produced on hand-fed punch presses, and include metal brackets, unfinished trays and dishes, electrical and electronic fittings, levers, parts for toys, lamp and lighting fixture parts, as well as other industrial and consumer products.  This classification applies whether some punch presses are operated by the employer interchangeably as either hand-fed or automatic feed.

Sheet metal stock in varying sizes is cut to size and stamped to shape using hand-fed punch presses to produce the stampings.  Also included are secondary or incidental machining operations which include blanking, bending, piercing, notching, deburring, tumbling, tapping, sanding, and buffing.

Machining of tools and dies used principally in the production of stampings by the same employer is included under the scope of this classification.

• Explosives – stamping of primer caps            
• Motion picture film reels – metal – stamped

1. Metal spinning’s and stamping – if spinning represents the major portion of the production process.  Switch plates, outlet plates and ceiling plates manufacturing – brass.   Refer to Code 3315 “Brass or Copper Goods Mfg.”

2. Metal stampings manufacturing exclusively using automatic-type punch presses.  Hinges and hinge tubes manufacturing – using hand-fed or semi-automatic punch presses.  Refer to Code 3129 “Buckle or Button Mfg. – Metal.”

3. Manufacturing of tools and dies as a separate enterprise by a metal stamping employer is separately assigned to the appropriate tool manufacturing classification code if most of the tools and dies are sold to others and are not used in the manufacture of the metal stampings.  Assign the appropriate tool manufacturing classification.

Code 7542 applies to employers engaged in meter reading operations for utility companies.  Meter readers normally work outside and drive from location to location in order to read customers’ utility meters.  Some utility companies now have their employees utilizing scanners to read the meters instead of physically reading the figures from the meters.  The figures obtained from the reading report the amount of gas, water or electricity a customer has used.  The customers will then be appropriately billed for the usage.  Meter readers are not exposed to any other operative hazards of the utility company and do not engage in repairing or installing utility meters.

1. Utility company operations.  Refer to Code 7502 “Gas Company – Natural Gas – Local Distribution – All Operations & Drivers,” Code 7520 “Waterworks Operation & Drivers,” or Code 7539 “Electric Light or Power Co. – All Employees & Drivers.”

Code 2070 applies to employers engaged in processing raw milk received from outside sources. Pasteurization to produce milk and cream and the further processing to produce buttermilk (natural), cottage cheese, solid cheeses, and butter fall within the scope of this classification. This classification contemplates the bottling, packaging, storage, and distribution of these products.

Employers engaged in operating milk depots or who act solely as milk dealers are also inclusive under this classification.

1.  Manufacturing:
   1. Baby formula (liquid or powdered), cultured buttermilk, condensed milk, evaporated milk, powdered milk, malted milk, sour cream, buttermilk (by use of starters, additives or artificial means), whipped cream (filling in aerosol cans), or yogurt.  Refer to Code 2065  “Milk Products Mfg. – NOC.”
   2. Baby formula soy type (liquid or powdered), butter substitute, liquid soy, margarine, powdered soy, pudding, cheese grinding, and packaging.  Refer to Code 6504 “Food Sundries Mfg. – NOC – No Cereal Milling.”
   3. Ice cream or frozen yogurt.  Refer to Code 2039 “Ice Cream Mfg. & Route Salespersons, Route Supervisors, Drivers.”

2. Dairy farm operations.  Refer to Code 0006 “Farm – NOC & Drivers.”

3. Milk bottle exchanges.  Refer to Code 8018 “Wholesale Store – NOC.”

Code 2065 applies to employers engaged in manufacturing various milk products such as condensed milk, evaporated milk, dried milk, dehydrated milk, malted milk, milk powder, and other similar milk products.  The main process involved is the evaporating of water from the raw milk in tanks by means of heat and the canning or packaging of the product.  Manufacturing containers, such as bottles, boxes, cans, cartons, or packing cases by the employer for use in the operations are inclusive under this classification.

• Whipped cream in aerosol cans
• Yogurt – not frozen dessert

1. Butter, cheese, cottage cheese, pot cheese, natural buttermilk, or natural sour cream   manufacturing.  Refer to Code 2070 “Milk Depot or Milk Dealer & Route Salespersons, Route Supervisors, Drivers.”

2. Ice cream manufacturing.  Refer to Code 2039 “Ice Cream Mfg. & Route Salespersons, Route Supervisors, Drivers.”

3. Milk processors, milk dealers or creamery operations in connection with distribution of fresh milk.  Refer to Code 2070 “Milk Depot or Milk Dealer & Route Salespersons, Route Supervisors Drivers."

Includes the construction, repair or maintenance of all buildings, structures or equipment and the installation of machinery.

Code 1170 and Code 1624 “Quarry – NOC & Drivers” shall not be assigned to the same risk unless the operations described by these classifications are conducted as separate and distinct businesses.

Code 1170 applies to employers engaged in the underground mining of ores or minerals.  Underground areas are accessed by tunnels, shafts, or drifts.  The materials are reached by sinking shafts and by driving rifts or cross-cuts through them.  The ore or mineral rock is first loosened by drilling and blasting with explosives, then loaded into mine cars and hauled outside or to a shaft where it is hoisted to the surface.  The material may be processed or partially processed at the mine site before it is transported to the customer or to another site for processing.

Equipment used includes timber, wire rope and miscellaneous steel for bracing tunnels, etc., track and mine cars, rock drills, ventilation equipment, air and water pipes, air compressors, wiring and electrical switches for lighting and blasting equipment.

• Borax
• Fluorite
• Gold – in drifts, shafts or tunnels 
• Graphite – natural
• Gypsum
• Lead – natural
• Manganese 
• Mica 
• Molybdenum 
• Nickel
• Silica 
• Talc – 5 percent or less free silica

1. Manufacturing:
   1. Brick, tile or earthenware and brick, clay or refractory products.  Refer to Code 4024 “Brick Mfg. – NOC – Fire or Enameled & Drivers.”
   2. Pottery.  Refer to Code 4053 “Pottery Mfg. – China or Tableware,” Code 4061 “Pottery Mfg. – Earthenware – Glazed or Porcelain – Hand Molded or Cast” or Code 4062 “Pottery Mfg. – Porcelain Ware – Mechanical Press Forming.”
   3. Rock wool.  Refer to Code 1701 “Cement Mfg.”
   4. Terra cotta.  Refer to Code 4053 “Pottery Mfg. – China or Tableware.”

2. Producing or refining salt, borax or potash.  Refer to Code 4568 “Salt, Borax or Potash Producing or Refining & Drivers.”

3. Flint or silica grinding.  Refer to Code 1741 “Flint or Spar Grinding & Drivers.”

4. Phosphate works.  Refer to Code 1452 “Ore Milling & Drivers.”

5. Quarrying.  Refer to Code 1624 “Quarry – NOC & Drivers.”

6. Stone cutting or polishing.  Refer to Code 1809 “Stone Cutting or Polishing – Marble or Limestone & Drivers” or Code 1810 “Stone Cutting or Polishing – NOC & Drivers.”

7. Surface mining at the same or separate location of shaft, tunnel, and drift mining.  Refer to Code 1624 “Quarry – NOC & Drivers.”

8. Talc milling.  Refer to Code 1747 “Emery Works & Drivers.”

Codes 4131 and 4130 “Glass Merchant” shall not be assigned to the same employer unless the operations described by these classifications are conducted as separate and distinct businesses.  Separately rate the manufacturing of glass, frames, backs or handles.

Code 4131 applies to employers engaged in manufacturing mirrors that range from pocket size to wall panels of varied types.   Glass, plating solutions, polishing, cleaning and protective materials and frames, backs, handles and other accessories are received from others.  Mirrors are generally produced by the chemical deposition of metal on glass. For commercial and many scientific purposes, silver is the metal most commonly used. The glass is cut to size, ground, smoothed and in some cases, edges may be beveled.  Hole drilling, chemical etching, drying, buffing and polishing are also performed. Reflecting surfaces are generally produced by pouring or spraying the appropriate metallic solution over the prepared glass. Heavier coats are obtained by successive applications of the plating solution. 

This classification contemplates assembling incidental to the production of framed mirrors, trays, mirror-edged picture frames and other novelties.  The operations are predominately hand assembling.  The reconditioning of old mirrors is also is assigned to this classification.

Manufacturing of mirrored glass from purchased glass sheets – no manufacturing of glass, frames, backs – repair in shop       

1. Glass merchants – selling purchased plate glass or mirror glass retail or wholesale.  Refer to Code 4130 “Glass Merchant.”     

2. Dental or surgical mirrored instruments – from purchased mirror – includes making frames and assembling.  Refer to Code 3685 “Instrument Mfg. – NOC.”

3. Manufacturing:
   1. Blown glass – not sheet window glass:
      1. By automatic process.  Refer to Code 4114 “Glassware Mfg.  – NOC.” 
      2. Not by automatic blowing process.  Refer to Code 4111 “Glass Mfg.  – No Automatic Blowing Machines.”

4. Colored, frosted or tinted glass, plate glass, insulated thermopane glass, automobile or truck windshields or window glass, polished plate glass.  Refer to Code 4101 “Glass Mfg. – NOC & Drivers.”

5. Stained or leaded glass.  Refer to Code 4133 “Cathedral or Art Glass Window Mfg.”

This classification is not applicable to an employer engaged in the actual construction at the same job or location.

Code 9534 applies to specialty contractors exclusively engaged in leasing cranes to others with operators.  The crane operators will operate the cranes at customers’ job sites to hoist machinery and equipment into existing buildings or on construction or erection projects.  Mobile cranes are also used to load or unload trucks or freight cars.

Hoisting of machinery, equipment or materials by specialty rigging service contractors using block and tackle, booms and cranes with rollers placed under items to facilitate moving them into position is also subject to this classification.

Concrete Pumping Exclusively by a Specialty Contractor

This classification also applies to concrete pumping exclusively by a service contractor.  Ready mixed concrete is purchased from suppliers and pumped into the service contractor’s concrete pumping truck.  These types of trucks have controls so that the concrete can be pumped to where it is specified by the employer’s customers at their job sites.  Utilizing the remote controls, the concrete pump operator will steer the concrete pump nozzle to the direction and placement where the ready mixed concrete is required to be dispersed with the amount of concrete specified by their customer.

1. Employers engaged in actual construction or erection at the same job or location. Assign the appropriate construction or erection classification.   

2. Scaffold erection, repair or removal as an incidental part of the contractor’s construction or erection work.  Assign the appropriate classification to which such construction or erection work applies.  

3. Scaffolds, hod hoists or construction elevators installation, repair or removal by specialist contractors.  Refer to Code 9526 “Scaffolds, Hod Hoists or Construction Elevators – Built-Up From the Ground – Installation, Repair or Removal – All Operations to Completion & Drivers.”

4. Scaffolds – outrigger – installation, repair or removal by specialist contractors.  Refer to Code 5403 “Carpentry – NOC – All Operations to Completion.”

5. Scaffolds – sidewalk bridges – not over one story in height – installation, repair or removal by specialist contractors.  Refer to Code 9527 “Scaffolds – Sidewalk Bridges – Not Over One Story in Height – Installation, Repair or Removal – All Operations to Completion & Drivers.”

Code 4360 applies to employers engaged in developing negatives, printing and subsequent operations of motion picture film and/or animated film.  Employers receive motion picture footage, develop the negatives and then edit by cutting and splicing.  Editing includes cutting to meet time constraints, unwanted segments, color corrections and sound enhancements such as audio being dubbed electronically onto the video tapes.

The industry has adapted to performing computerized editing which is also contemplated by this classification.  In this case motion picture film is received on discs and edited directly on computer terminals.  Editing of video tapes that are received from others is also an inclusion under this classification.

This classification applies to the process of transferring motion picture film to video tape known as video tape conversion.   It also includes motion picture film transfers to DVD.

Once the above operations are completed, film, discs and/or video tapes are packaged and ready for shipment or customer pick up.

1. Motion picture:
   1. Film exchanges.  Refer to Code 4362 “Film Exchange – Motion Picture & Clerical.”
   2. In studios or outside – all operations up to the development of negatives and drivers.  Refer to Code 9610 “Motion Picture Production – In Studios or Outside – All Operations up to the Development of Negatives & Drivers.”

The entire remuneration of all employees shall be included in computing premium, subject, however, to the maximum average weekly wage per employee.  Refer to the “Miscellaneous Values” of Part Three – Loss Costs of this Manual for current weekly maximum amounts.

Code 9610 applies to employers engaged in operations of a motion picture production.  This classification includes all operations of the production up to the development of the negatives and contemplates producing films, videos and television commercials.  Videos are made for the entertainment industry and for consulting, educational, and instructional purposes.

1. Development of negatives, print and edit operations.  Refer to Code 4360 “Motion Picture – Development of Negatives, Printing and All Subsequent Operations.”

Separately rate workers, mechanics or others engaged in manual labor or supervisors of construction work.

Code 9410 applies to municipalities that usually conduct a variety of operations which may be subject to separate classification code assignments.  The types of employees that are covered under this classification include outside Board of Health workers and employees engaged in inspection work, for example, inspectors of buildings, electrical inspectors, tax assessors and those employees engaged in laboratory work. 

This classification does not include any individuals engaged in manual labor associated with construction, repair or maintenance for the municipality.  This classification also does not apply to most persons working in courts, homes for the aged, hospitals, jails, libraries, parks, schools, and other agencies providing services for the municipality.  Clerical employees in municipal offices are assigned to Code 8810 “Clerical Office Employees – NOC.”

Includes stringing, repairing and servicing of metal musical instruments.

Code 3686 applies to employers engaged in manufacturing metal musical instruments such as trumpets, horns, saxophones, trombones and cornets.  Metals are cut to size and designed, bent, stamped, brazed, deburred, and polished to finish.  The instruments are then packed and readied for shipment to the employer’s customers.

1. Piano tuning in shop or outside.  Refer to Code 5191 “Office Machine Installation, Inspection, Adjustment or Repair.”

2. Wooden musical instrument manufacturing including pianos.  Refer to Code 2923 “Musical Instrument Mfg. – NOC – Wood.”

Code 2923 and Code 2883 “Furniture Mfg. – NOC – Wood” shall not be assigned to the same employer unless the operations described by these classifications are conducted as separate and distinct businesses.

Code 2923 applies to employers engaged in manufacturing wooden musical instruments such as violins, guitars, cellos, harmonicas, drums, bass drums, clarinets and other similar wooden instruments.  Cases manufacturing and the tanning of skins used in the manufacturing of wooden drums, tambourines and banjos are considered incidental to the operations assigned to this classification and therefore included.

Manufacturing pianos, player pianos and organs are also included under this classification.  This classification includes fabrication of metal frames, sounding boards, keyboards, wire and string graduation.

Bird and animal callers (whistlers) – wooden

1. Manufacturing:
   1. Cases used for transporting musical instruments.  Refer to Code 2683 “Luggage Mfg.” 
   2. Gut string manufacturing only – for musical instruments – not wound with wire.  Refer to Code 2688 “Leather Goods Mfg. – NOC.”  
   3. Musical instruments – metal – such as saxophones, trumpets and horns.  Gut string only – for musical instruments – wound with wire.  Music boxes made of metal – with musical mechanism.  Refer to Code 3686 “Musical Instrument Mfg. – NOC – Metal.”
   4. Piano case or organ case only – wood.  Refer to Code 2883 “Furniture Mfg. – NOC – Wood.”