Class code 5190: Electrical wiring within buildings

What 5190 covers

• Installing electrical wiring systems inside buildings.
• Installing small electrical fixtures such as plugs, fuses, and switches.
• Occasional minor work on electrical apparatus that is incidental to a job that is mainly wiring, per North Carolina's description.

What doesn't belong in 5190

• Installing electrical machinery or apparatus, which is generally 3724.
• Installing and repairing commercial appliances, and servicing refrigeration systems.
• Telephone and cable line installation, and outside power line construction, which have their own classifications.

Official titles by state

Each rating bureau publishes its own definition. Titles below are quoted exactly as the bureau publishes them; follow the link for the full official description.

Codes 5190 is often confused with

• 3724 — Machinery or equipment erectionInstalling machinery or electrical apparatus, as opposed to wiring, is generally 3724.
• 5183 — PlumbingA contractor doing both trades has payroll assigned by the work each employee performs, where records support it.

What a premium audit looks at

• Invoices showing wiring work versus equipment installation or appliance repair.
• Whether any employees do outside line work on poles or underground.

Check the official manuals

• NCCI Class Look-Up The official tool for the states where NCCI administers the classification system.
• WCIRB California Classification Search California runs its own classification system; its code numbers don't map one-to-one to NCCI's.
• NYCIRB Classification Digest New York's official classification descriptions.
• WCRB Massachusetts Class Code Lookup Massachusetts' official classification descriptions.
• NCRB North Carolina Class Code Lookup North Carolina's official classification descriptions.

Related terms

• Class codeA class code is a four-digit number that groups businesses or job duties by the hazard of the work, and determines the rate applied to payroll assigned to it.
• Division of payrollDivision of payroll is the practice of splitting one employee's wages across multiple class codes when they genuinely perform work in more than one classification.

General information, not a classification ruling. Summaries on this page are written in plain English from the bureaus' published descriptions; the classification manual for the state where the work was performed governs, and the carrier and rating bureau determine the classification for any policy.

All class codes