WC & EL / PART TWO / CLASSIFICATION CODE INTERPRETATIONS

Includes shop operations.

Code 5191 applies to employers engaged in installation, inspection, adjustment and/or repair of office machines such as computers, computer accessories, copy machines, microfilm equipment, postage machines, typewriters, etc.  The installation consists of setting up machines at the customer’s location.  The employer will connect any components and accessories to the machine and then connect the machine to a power source.  This classification includes the running of low voltage wire from the equipment to the power source. 

The employer will, by contract or per job basis, inspect, adjust and/or repair any office machines at the customer’s location or employer’s shop.  The employer will analyze any problem with the office equipment, replace damaged parts and reassemble the equipment.  On a contract basis, the employer may conduct routine maintenance and cleaning of the customer’s office machines. 

The repair and tuning of pianos are also assigned to this classification.

1. Installation and repair of high voltage and alarm systems.  Refer to Code 5190 “Electrical Wiring – Within Buildings – All Operations to Completion & Drivers.”

2. Manufacturing of computers, office machines, cash registers, recording machines, gas meters and typewriters.  Refer to Code 3574 “Office, Computing or Recording Machine Mfg. – NOC.”

Code 3574 applies to employers engaged in manufacturing calculators, adding machines, computers, typewriters, recording machines or other types of office machines.

The manufacturing process usually involves a great deal of intricate hand assembly.  The assembly work includes soldering, wiring, drilling and securing with nuts and bolts.  This classification also includes stamping castings, plastic moldings, machining and manufacturing other component parts in connection to the employer’s operations.

The manufactured products are inspected and tested for quality assurance purposes before being packed and shipped to the employer’s customers.

• Automatic teller machines (ATM) 
• Jukeboxes – computer peripheral 
• Meters
  • Electric meters – measuring usage – repairing and testing in shop
  • Gas meters – including repair in shop  
• Parking meters  
• Postage meters
• Slot machines – casino type – not vending type
• Stamp vending machines – postage machines
• Video arcade game machines
• Voting machines
• Wagering machines  

1. Office machines or computer devices installation, inspection, service, adjustment or repair including shop operations.  Voting machines erection, storage, dismantling, repairing and maintenance.  Refer to Code 5191 “Office Machine Installation, Inspection, Adjustment or Repair.”

2. Tape recorder manufacturing.  Refer to Code 3681 “Television, Radio, Telephone or Telecommunication Device Mfg. – NOC.” 

Code 5193 shall not be assigned at the same job or location to which Code 5183 “Plumbing – NOC – All Operations to Completion & Drivers” applies.

Code 5193 applies to employers engaged in oil or gas burner installation, service or repair.  The oil or gas burners are normally set up in fire boxes within residential homes.  The controls are installed and connected to the burners and electrical power supply.  Fuel tanks are then set up and connected to the burners.  After installation, the burners are ignited, tested and adjusted.

The service and repair of oil and gas burners involves troubleshooting the problem and removing and replacing defective parts using hand tools.  Parts such as burner heads, nozzles, gaskets, starters and filters are commonly replaced.  These units may also be cleaned, and motors and fans oiled.  Once the repairs and/or service is complete, the units are tested for proper working condition.

Appliances – ranges, stove or wall ovens – gas burner assemblies, oil heating and/or Bunsen burners

1. Plumbing operations.  Refer to Code 5183 “Plumbing – NOC – All Operations to Completion & Drivers.”

Not available for division of payroll with Code 5213 “Concrete Construction – NOC – All Operations to Completion” which is applicable to oil or gas well acidizing or cementing at the same job or location.

Code 6235 applies to employers engaged in drilling or redrilling oil or gas wells, and includes erection or dismantling of drilling rigs, formation fracturing, cementing and installation of casing when such operations are performed by employees of the drilling company.  Cleaning or swabbing of a new well that has not yet been completed is included under this classification whether performed by employees of the driller or by a specialist contractor.

Oil or gas well holes are usually drilled using either a cable or rotary-type rig.  The cable rig involves dropping a pointed bit that is attached to a cable repeatedly into a hole until the hole reaches the desired depth.  The rotary rig involves drilling a holt by applying pressure to a drilling stem that has a rotating bit attached to it.  The latter method is used for both vertical drilling, and for directional and horizontal drilling.  Directional drilling is the process of drilling a curved well, in order to reach a target that is not directly beneath the drill site.  Horizontal drilling can make a 90 degree turn in only a few feet to reach less accessible reservoirs.

1. Drilling – Not Otherwise Classified (NOC).  Refer to Code 6204 “Drilling – NOC – All Operations to Completion & Drivers.”

2. Oil or gas well:
1. Acidizing or cementing – not at the same job or location that is subject to Code 6235.  Refer to Code 5213 “Concrete Construction – NOC – All Operations to Completion.”
2. Perforating or oil or gas well shooting.  Refer to Code 5508 “Excavation – Rock – All Operations to Completion & Drivers.”

Code 4150 applies to employers engaged in manufacturing optical goods and ground lenses.  This classification includes specialists who perform precision grinding of lenses or the grinding of blank or rough lenses to curvature and size for retailers, i.e., optometrists and opticians.  This classification also includes the complete process of assembling the lenses into frames to obtain eyeglasses, opera glasses, field glasses and industrial goggles.  Glass and plastic blanks, emery, polishing rouge, steel, silver and gold wire rod or tube, sheet plastic, and metal are received from others.  The glass or plastic blanks are heated; put in molds; formed; annealed; set in grinding machines; ground down to size, gauge, and thickness; centered; polished; and edges are trimmed and beveled.  The lenses are then buffed, washed, and inspected.  Some lenses are shipped to customers, while others are mounted in the product being made.  The products may be manufactured by employers falling within the scope of this classification, or they may be assembled from component parts received from others.

• Telescopes
• Watches or watch parts – crystals – glass and plastic

1. Eye exam – licensed optometrist.  Refer to Code 8832 “Physician & Clerical.”

Code 1452 “Ore Milling & Drivers,” Code 1430 “Smelting, Sintering or Refining Lead & Drivers,” and Code 1438  shall not be assigned to the same risk unless the operations described by these classifications are conducted as separate and distinct businesses.

Code 1452  applies to employers engaged in processing raw ores that are received from mines.  Processing includes crushing, concentration or amalgamation.  Ores are fed into crushers and then ball mills which reduce the ore to a powder.  The powder producing an ore is screened and may first be treated with caustic materials or acids.  The powder then goes through a flotation process where it is mixed with water slurry which passes over gravity separators causing lighter rock to wash away and the heavier ores to sink.  The ore slurry is then treated with various chemicals that separate different ores from others.  Most metal ores, when mined, contain other metals that can be separated in this manner.  

Segregated ore slurries are heated to remove excess water.  The slurry may then be pressed into pellets or just dried in rotary kilns.  This is known as the concentration process.  

Different ore concentrates may be mixed together (amalgamates) prior to shipment to customers.  

The manufacturing of natural graphite, i.e., the extraction of graphite from graphite rock, is also included under this classification.  This process involves crushing, milling, pulverizing, screening, floatation and lastly drying.   

The milling of ores to recover some nonmetallic minerals which do not require amalgamation or floatation also falls within this classification.  

This classification also includes employers that are engaged in phosphate works.  Phosphate rock or phosphate pebbles are received from others.  The process starts with running the phosphate rocks or pebbles through a washer which removes mud and sand.  The rocks and pebbles are then crushed, ground, screened and washed.  The material is then dried in dryers and is either bagged or shipped in bulk to the employer’s customers which are usually wet-mixing fertilizer plants.   

This classification contemplates the treatment of ground phosphate pebbles or rock with sulphuric, phosphoric or nitric acids.  These acids may be received from others or manufactured by the employer provided that the acids are used solely in production of their own product.  Decomposing ground phosphate with acids produces a product, i.e., acid phosphate or super phosphate.  This type of product when prepared is typically shipped to dry-mixing plants for use in the preparation of complete fertilizers. 

• Cinder manufacturing
• Milling or grinding of magnesium metal  
• Mortar colors – from iron ore – crush, dry, grind and sift  
• Quartz milling 

1. Manufacturing:
   1. Coke.  Refer to Code 1470 “Alcohol Mfg. – Wood & Drivers.”
   2. Magnesium metal.  Refer to Code 1438 “Smelting, Sintering or Refining – NOC – Metals – Not Iron or Lead & Drivers.” 
   3. Solder:
      1.  In paste and flux form.  Refer to Code 4597 “Paste, Ink (Writing) or Mucilage Mfg.”
      2.  In bars that are melted and poured.  Refer to Code 3085 “Foundry – Non-Ferrous.”
      3.  In wire form, extruded by hydraulic press.  Refer to Code 1925 “Die Casting Mfg.”

2. Blast furnace operations involving smelting, sintering or refining metals other than lead or iron.  Refer to Code 1438 “Smelting, Sintering or Refining – NOC – Metals – Not Iron or Lead & Drivers.”

3. Reclaiming lead in the process of smelting, sintering or refining metals in any form or quantity.  Refer to Code 1430 “Smelting, Sintering or Refining Lead & Drivers.”

4.  Smelting by an electric process (no blast furnance) to produce carborundum, artificial carbon or graphite (using coke and other ingredients), or other electric furnance products.  Refer to Code 1439 "smelting - Electric Process."

5. Steel making in electric or open-hearth furnaces and the Bessemer or crucible process.  Refer to Code 3004 "Iron or steel Mfg. - Steelmaking & Drivers."

Includes tank charging.

Code 4635 applies to employers engaged in recovery of oxygen and hydrogen from air or water.  This classification also includes manufacturing dry ice.  Carbonic acid is the weak acidic water solution of carbon dioxide and is used in soft drinks and carbonated beverages to provide the fizz and sparkle. 

This classification also includes tank charging/filling.  Gases such as oxygen, nitrogen, acetylene, argon and nitrous oxide may be purchased from outside suppliers in bulk and stored in tanks.  Empty tanks are received from customers where they are tested for leaks, blown out for remaining excess gas, refilled and delivered to the customer.  Some employers purchase oxygen and nitrogen in a liquified form and store it in bulk containers.  The liquid is then vaporized in a vaporizing machine into gas and filled into cylinders.
 

1. Carbonic – dry ice manufacturing – expansion from CO2  or helium manufacturing: 
   1. Blending or Mixing – exclusively.  Refer to Code 4828 “Chemical Blending or Mixing – NOC – All Operations & Drivers.”
   2. Chemical process.  Refer to Code 4829 “Chemical Mfg. – NOC – All Operations & Drivers.”

Code 2114 and Code 2111 “Cannery – NOC” shall not be assigned to the same risk unless the operations described by these classifications are conducted as separate and distinct businesses.

Code 2114 applies to employers engaged in processing oysters or clams.  This classification applies to shore or dock work only.  The oysters or clams may be picked up from docks or received at employer’s processing plants on shore.  The operations involve grading, washing, shucking and packing including use of knives.  

Seafood – cull, sort, shuck, grade, pack – shore or dock work

1. Canning of clams when conducted as a separate and distinct business.  Refer to Code 2111 “Cannery – NOC.” 

2. Clam processing including chopping and mixing with other ingredients.  Refer to Code 6504 “Food Sundries Mfg. – NOC – No Cereal Milling.”