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Classification Search

The Classification Search helps you locate classifications based on keywords that are part of, or commonly associated with, classification phraseologies. Enter a search term or classification code below to begin your search. Narrow your search by choosing an industry group or related classifications from the "Filter By" pulldown menu. Refer to the Insurance Commissioner's rules regarding the Standard Classification System in Part 3, Standard Classification System, of the California Workers' Compensation Uniform Statistical Reporting Plan—1995 (USRP).

2020 Quick Reference Guide – Summary of Approved Changes to the USRP, ERP and Miscellaneous Regulations
2019 Quick Reference Guide – Summary of Approved Changes to the USRP and ERP
Classification Search Tips

Standard Classifications

Click on a phraseology or code in the search results below to view detailed information such as phraseology, footnotes, rules and pure premium rates for that classification. To view the search results in alphabetical order, click on the "Phraseology" link at the top of the column. To view the search results in numerical order, click on the "Code" link at the top of the column.

Codesort descending Phraseology
3681(4)

AUDIO/VIDEO ELECTRONIC PRODUCTS MFG.

3682 INSTRUMENT MFG. — non-electronic — scientific or medical — N.O.C.
3683 SPEAKER MFG.
3719

OIL OR GAS REFINERIES — erection or repair — all operations

3724(1)

MILLWRIGHT WORK — N.O.C. — erection or repair of machinery or equipment at customers’ locations

3724(2)

ELECTRICAL MACHINERY OR AUXILIARY APPARATUS — installation, service or repair — including incidental wiring

3726

BOILER INSTALLATION, SERVICE OR REPAIR — steam or hot water

3805(1)

AIRCRAFT ENGINE MFG. OR REBUILDING

3805(2)

AUTOMOBILE OR TRUCK ENGINE MFG.

3808

AUTOMOBILE OR MOTORCYCLE MFG. OR ASSEMBLING

3815(1)

TRUCK, TRUCK TRAILER OR BUS MFG. OR ASSEMBLING

3815(2)

TRUCK BODY MFG. — truck, trailer or bus bodies

3821

AUTOMOBILE OR TRUCK DISMANTLING — including transport of vehicles owned by the employer, the salvaging or junking of parts and store operations

3828

AUTOMOBILE OR TRUCK PARTS REBUILDING — including incidental machining

3830(1)

AIRCRAFT OR SPACECRAFT MFG. — including foundry operations

3830(2)

UNMANNED AIRCRAFT SYSTEM MFG. — aircraft system and payload total combined weight of 55 pounds or heavier

3831 MACHINE SHOPS — aircraft components
3840

AUTOMOBILE, TRUCK OR MOTORCYCLE PARTS MFG. — N.O.C.

4000(1)

SAND OR GRAVEL DIGGING — including construction, repair or maintenance of all buildings, structures or equipment and installation of machinery

4000(2) CLAY DIGGING — including construction, repair and maintenance of all buildings, structures or equipment and the installation of machinery

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The Classification Search was developed by the WCIRB for your convenience to help you identify Standard Classifications based on keywords or a classification code. However, you cannot rely solely on the Classification Search and must make an independent assessment when determining the appropriate classification(s) assignable to a risk in accordance with the USRP.