How to find your NCCI class code (occupation lookup, state rules)
# How to find your NCCI class code
Your class code is on your declarations page right now. If you have a current workers compensation policy, pull the dec page first. The classification analysis below is for employers without a current policy, employers who suspect their assigned code is wrong, or employers expanding into a new operation that needs a new code.
The three reliable paths
Path 1: Your current declarations page. The dec page lists every class code assigned to your operations, the payroll allocated to each code, the rate per $100, and any modifiers. This is the highest-confidence source because the underwriter has approved the assignment and the carrier is committed to it for the policy period.
If you do not have a current dec page, request one from your carrier or broker. They are required to provide it. The dec page also tells you whether you are in the standard market, a state-fund residual market, or an assigned-risk pool.
Path 2: Your most recent year-end audit report. Audit reports often correct errors that were on the original dec page. The auditor reviews actual payroll records, employee job duties, subcontractor agreements, and operational documentation. If your dec page assigned a code based on what the underwriter expected and the audit reclassified to a different code, the audit version is more accurate.
Path 3: Match operations to bureau descriptions. This is what every new employer has to do for the first policy. The process:
1. Identify your primary business operation. If you do multiple operations, identify the one that drives the largest share of payroll. 2. Match the operation to the closest NCCI Scopes Manual description (or your state bureau's classification guide if you are in an independent-bureau state). 3. Identify any secondary operations that justify additional codes. Office clerical (NCCI 8810) is almost always a separate code from field operations. Sales staff who do not visit job sites usually carry a separate outside-sales code (NCCI 8742). 4. Verify the rate range against your state's most recent filing approval. Bureau classifications and state DOI rate filings are public records.
For a free starting point on the matching step, our search at /class-code/ lets you look up codes by occupation. The descriptions are drawn from publicly-filed state insurance department documents.
What the Scopes Manual actually contains
NCCI's Scopes Manual is the canonical document for NCCI states. It lists every active class code with three pieces of information per code:
The classification phraseology, which is the name of the code and the operations it includes by default.
The exclusions, which are operations that look like the included operations but require a different code.
The cross-references, which are related codes the underwriter should consider.
Class code 5403, for example, is "Carpentry, residential" with the phraseology covering framing, roof structures, exterior finish, and interior trim work on dwellings of three stories or less. The exclusions include high-rise dwellings (a different code), commercial structures (5645 or related), and specialty operations like cabinet installation (5437). The cross-references point underwriters to 5645, 5651, and other carpentry codes for borderline cases.
The Manual is paywalled at $440 per state edition. State DOI rate filings reference NCCI classifications by name and number, and those filings are public records. Our database of 2,243 unique codes is built from those public references [cells/cells-summary.json].
State rules vary
The 11 independent-bureau states maintain their own classification systems. Most use NCCI codes as a base with state-specific modifications, but some have entirely independent code structures.
California (WCIRB). Uses California-specific class codes that overlap with NCCI but include CA-only codes for industries like agriculture and entertainment. The WCIRB Classification Search is publicly searchable at wcirb.com. Coverage is mandatory for employers with one or more employees [state-facts/CA.json].
New York (NYCIRB). Uses NY-specific codes built on NCCI structure. The NYCIRB publishes a classification guide and processes reclassification requests directly. Coverage is mandatory for all employers with employees [state-facts/NY.json].
Pennsylvania (PCRB), New Jersey (NJCRIB), Delaware (DCRB), Massachusetts (WCRIBMA), Indiana, Michigan (CAOM), Minnesota (MWCIA), North Carolina (NCRB), Wisconsin (WCRB). All maintain their own classification systems with their own rate filings. Most are searchable through the bureau's website with varying degrees of public access.
The 4 monopolistic state funds. Ohio (BWC), North Dakota (WSI), Washington (L&I), and Wyoming (DWS) use proprietary classification systems. Private employers must purchase coverage from the state agency, which assigns the classification at policy issuance. Washington L&I uses risk classifications and sub-classifications searchable on their website [state-facts/WA.json]. Ohio BWC uses NCCI codes as a base with state-specific overlays [state-facts/OH.json].
If you operate in multiple states, expect different class codes in each. A single contractor may carry NCCI 5403 in Texas, a different California-specific code in CA, and a state-fund classification in Ohio for the same operations.
How to allocate payroll across multiple codes
If you have employees performing different operations, payroll must be allocated to each code. The general rules:
An employee who performs only one operation gets allocated entirely to that operation's code.
An employee who performs multiple operations during a policy period gets allocated based on time records that prove the split.
Office workers who do not perform field operations are typically allocated to clerical (NCCI 8810).
Outside sales staff who do not visit job sites are typically allocated to outside sales (NCCI 8742).
Without supporting time records, auditors will assign all of an employee's payroll to the highest-rated code that employee touched during the policy period. This is called the "governing classification" rule and it is expensive. A carpentry contractor whose office bookkeeper occasionally visits a job site can find the bookkeeper's entire payroll reclassified from 8810 ($0.18 to $0.67 per $100) to 5403 ($4.80 to $9.20 per $100) at audit if there are no time records to support the office allocation.
The fix: maintain payroll-allocation records that show, for each employee, the percentage of time spent in each classification. Most payroll software supports class-code tagging at the employee or department level. Use it.
Common classification errors
The errors we see most often, drawn from operator-reported audit disputes:
Roofing under carpentry. Roofing is NCCI 5551 in most states, with rates substantially higher than carpentry (NCCI 5403). Some underwriters miscode roofing as carpentry at policy issuance, then the audit catches it.
Subcontractor labor on the GC's policy. When subcontractors do not have their own workers comp coverage, the general contractor is liable in most states [state-facts/CA.json, state-facts/TX.json]. Auditors will pick up uninsured subcontractor labor and add it to the GC's policy at the appropriate class code, which is usually a high-rate construction code.
Owner-operator drivers. Owner-operators in trucking are classified differently than W-2 drivers in NCCI 7228 or 7229. Misclassifying an owner-operator as an employee driver inflates premium. Misclassifying an employee driver as an owner-operator triggers misclassification penalties.
Clerical-versus-field for working owners. A working owner who is not excluded from coverage gets allocated to whichever class code matches their actual duties. An LLC owner who works in the field as a carpenter is allocated to 5403 even if they handle the bookkeeping in the evenings. The owner-exclusion election (allowed in 48 of 51 jurisdictions per our state-facts files) is usually the cleaner path for owner-only LLCs.
How to dispute a class code
When your audit reclassifies payroll to a higher-rate code, you have three escalation paths.
First, the underwriter review. Request a written underwriter review with documentation: actual job descriptions for affected employees, payroll-allocation records, photos of work sites and equipment, subcontractor agreements (if relevant), and a written explanation of why the original classification was correct. Most reclassification disputes resolve at this stage.
Second, the state bureau. Independent-bureau states accept reclassification appeals directly. WCIRB in California, NYCIRB in New York, PCRB in Pennsylvania all have formal reclassification petition processes. NCCI does not adjudicate individual disputes for the 36 NCCI states; in those states, the bureau-classification step is the carrier's call.
Third, the state DOI. If the carrier refuses to reclassify and the state bureau (where applicable) backs the carrier, file a complaint with the state DOI's market-conduct division. The DOI will not adjudicate the underlying classification (that is a private dispute), but they will compel the carrier to follow proper review procedures and document the reasoning.
For audit-specific disputes, see /spokes/audit-defense-checklist.
After the code: what the rate looks like
Class code is the start of the rate calculation. Three modifiers come next:
Loss-cost multiplier (LCM) or carrier rate. Bureau loss costs are the floor. Carriers either multiply by a state-filed LCM (Texas, NCCI states) or file their own rates (New York, competitive-rating states). The LCM varies by carrier from roughly 1.10 to 2.00 in most markets.
Schedule credit or debit. Most states allow schedule modifications of plus or minus a state-specific maximum. California, New York, and Texas all cap schedule credits at 25% [state-facts/CA.json, state-facts/NY.json, state-facts/TX.json].
Experience modification rate (EMR). The multiplier based on three-year claim history. Below 1.00 is a credit; above 1.00 is a debit. See /spokes/emr-explained.
For a worked premium calculation across these modifiers, see the pillar at /pillar/workers-comp-class-codes-complete-guide.
Related resources
State overview: how state rules differ
Workers comp settlement guide
How to find a workers comp lawyer
EMR explained
1099 vs W-2 workers comp
Audit defense checklist
This is general information, not legal or insurance advice. Consult a licensed broker or attorney for your situation.
---
*This is a syndicated post. Original article + interactive calculator: https://wcclasscode.com/find-class-code/*
