Class Code Lookup

This class code lookup guide is to be used as an aid in determining the proper classification for a given operation. Please use the search field below for any keywords in the desired classification. For a detailed description of each code, please refer to the Classification Manual.

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Class Code 
Description 
3632ABBRASIVE BLASTING OF METAL
4279ABBRASIVE DISC MANUFACTURE
8106ABBRASIVE METAL GRIT DISTRIBUTOR
1438ABBRASIVE METAL GRIT MANUFACTURE
1748ABRASIVE WHEEL MFG.
1748ABRASIVE WHEEL MFG.; CLAY MILLING; ROOFING GRANULES MFG; SILICA OR SLATE GRINDING
5146ACCESS FLOOR INSTALLATION
8803ACCOUNTANT, AUDITOR, FACTORY COST OR OFFICE SYSTEMATIZER - TRAVELING
8010ACETYLENE GAS DEALER INCLUDING TANK FILLING
4829ACID MFG; AMMONIA MFG; AMMONIUM NITRATE MFG; CHEMICAL MFG NOC; VITRIOL MFG
5020ACOUSTICAL CEILING TILE INSTALLATION
5479ACOUSTICAL MATERIAL INSTALLATION; INSULATION WORK NOC
3574ADDING, COMPUTING, RECORDING, OFFICE MACHINE or COMPUTER MFG
3574ADDING, COMPUTING, RECORDING, OFFICE MACHINE or COMPUTER MFG; SEWING MACHINE MFG;
8800ADDRESSING OR MAILING COMPANY
9063ADULT DAY CARE - ACTIVITY CENTER
9053ADULT FOSTER CARE ASS'T LIVING & HOME FOR THE AGED
7422AERIAL SURVEY
9063AEROBICS INSTRUCTOR
8059AEROSOL PACKAGING AS A SERVICE (IF DONE AS PART OF A PROCESS INCLUDE IN THE PROCESS CODE).
3507AGRICULTURAL MACHINERY MFG; CONSTRUCTION MACHINERY, DREDGE, OR STEAM SHOVEL MFG NOC
3507AGRICULTURAL MACHINERY MFG; CONSTRUCTION MACHINERY, DREDGE, OR STEAM SHOVEL MFG NOC;
7422AIR AMBULANCE FLYING CREW
7423AIR AMBULANCE GROUND CREW
7405AIR CARRIER: SCHEDULED, SUPPLEMENTAL, OR COMMUTER: FLYING CREW
7403AIR CARRIER: SCHEDULED, SUPPLEMENTAL, OR COMMUTER: GROUND EMPLOYEES
3724AIR COMPRESSOR REPAIR AT CUSTOMER LOCATION
3612AIR COMPRESSOR REPAIR IN SHOP
5550AIR CONDITIONING OR HEATING INSTALLATION, SERVICE, OR REPAIR
5550AIR CONDITIONING OR HEATING INSTALLATION, SERVICE, OR REPAIR - NON PORTABLE
9519AIR CONDITIONING UNIT-PROTABLE INSTALLATION AND SERVICE
3612AIR CYLINDER MANUFACTURE AND REPAIR
9015AIR PURIFICATION BY OZONE PROCESS
3620AIR TANK MANUFACTURE (OXYGEN, ACETYLENE, ETC)
3612AIR TOOL MANUFACTURE AND REPAIR
7423AIR TRAFFIC CONTROLLER
5183AIR TUBE INSTALLATION - BANK
8868AIRCRAFT GROUND SCHOOL-CLASSROOM ONLY
9108AIRCRAFT OPERATION PASSENGER SEAT SURCHARGE
7422AIRCRAFT OR HELICOPTER OPER: NOC: FLYING CREW; DRIVERS: AUTO RACING
7423AIRCRAFT OR HELICOPTER OPERATION, GROUND EMPLOYEES: NOC
7422AIRCRAFT OR HELICOPTER OPERATION: FLYING CREW-NOC, AUTO RACING DRIVER, FIRE FIGHTING - FLYING CREW
7423AIRCRAFT OR HELICOPTER OPERATION: NOC: GROUND EMPLOYEES; AIRPORT OPERATOR
7421AIRCRAFT OR HELICOPTER OPERATIONS, TRANSPORT OWN PERSONNEL FOR OWN BUSINESS - FLYING CREW
7421AIRCRAFT OR HELICOPTER OPERATIONS: TRANSPORTATION OF EMPLOYERS PERSONNEL: FLYING CREW
7423AIRCRAFT RADIO REPAIR OR ELECTRONIC INSTALLATION
3076AIRCRAFT SHEET METAL PART MANUFACTURE
7212AIRPORT SHUTTLE
3372ALUMINUM ANODIZING
3066ALUMINUM EXTRUDING
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