What Are Workers' Compensation Class Codes?
Workers' compensation class codes are numeric identifiers used by insurers to categorize the type of work an employee performs. In Maine, these codes determine the premium rates that employers pay for coverage, reflecting the relative risk of injury associated with each occupation.
- What Are Workers' Compensation Class Codes?
- Why Maine Uses Its Own Classification System
- How Class Codes Are Assigned
- Typical Steps for Employers
- Key Maine Workers' Compensation Class Codes
- Impact on Premiums and Payroll
- Common Misconceptions
- How to Verify Your Business's Class Codes
- Steps to Correct Misclassifications
- Resources for Employers
- Future Changes to Watch
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Why Maine Uses Its Own Classification System
Maine follows the National Council on Compensation Insurance (NCCI) classification system but adds state‑specific adjustments. The Maine Workers' Compensation Board (MWCB) oversees the rate‑setting process, ensuring that premiums align with local injury data and legislative requirements.
How Class Codes Are Assigned
When a business registers for workers' compensation, the insurer reviews the job descriptions and matches each role to the most appropriate NCCI code. If a job does not fit an existing code, the insurer may request a new classification from NCCI, which Maine then adopts after state review.
Typical Steps for Employers
- Submit detailed job descriptions to the insurance carrier.
- Carrier assigns NCCI codes (e.g., 8810 for clerical office work).
- MWCB reviews the assignment for compliance with Maine rules.
- Employer receives a premium schedule based on the final codes.
Key Maine Workers' Compensation Class Codes
The most common codes used in Maine and their general descriptions are summarized in the table below. Rates are illustrative and vary by insurer.
| Class Code | Description | Typical Rate (per $100 of payroll) |
|---|---|---|
| 8810 | Clerical Office Employees | 0.30‑0.45 |
| 8742 | Construction – General Contractors | 2.50‑4.20 |
| 8743 | Construction – Sub‑contractors | 2.80‑4.60 |
| 8744 | Construction – Heavy & Civil | 3.10‑5.00 |
| 8812 | Sales – Retail (outside sales) | 0.50‑0.75 |
| 8740 | Manufacturing – General | 1.20‑1.80 |
Impact on Premiums and Payroll
Each code carries a "rate" that is multiplied by the employer's payroll for that job classification. The formula is:
Premium = (Rate ÷ 100) × Payroll
For example, a Maine bakery employing 5 workers classified under code 8740 with a combined payroll of $150,000 would pay:
(1.50 ÷ 100) × $150,000 = $2,250 annually.
Common Misconceptions
- "All office workers are 8810." Not always—if an office employee also performs manual tasks, a different code may apply.
- "Changing a code reduces premiums instantly." Adjustments are reviewed annually; retroactive changes are limited.
- "Higher rates mean bad safety." Rates reflect statistical risk, not necessarily the employer's safety record.
How to Verify Your Business's Class Codes
Employers can request a copy of their classification schedule from their carrier or log into the MWCB's online portal. The portal provides:
- Current class codes and rates.
- Historical premium statements.
- Tools to request re‑classification if job duties have changed.
Steps to Correct Misclassifications
If you suspect an error, follow these steps:
Resources for Employers
Below are essential resources to stay compliant and informed:
- Maine Workers' Compensation Board website
- National Council on Compensation Insurance (NCCI)
- Maine Department of Labor – Insurance Division
Future Changes to Watch
Legislation is periodically introduced to adjust rates or modify classification rules. Employers should monitor the MWCB's annual rate filing notices, typically released in the fall, to anticipate any premium shifts.