Class code 4751: Synthetic Rubber Mfg.
Class 4751 is the NCCI workers' comp code for “Synthetic Rubber Mfg.”.
The facts
- Official wording (NCCI)
- Synthetic Rubber Mfg.
- Industry group (our dictionary)
- Manufacturing
- Hazard group
- E
- State codes that differ
- CA 4410 · DE 0581 · MI 4410 · NJ 4410 · PA 0581
- Line
- Workers' comp
What it means
Class 4751 is the code carriers use to rate workers' comp payroll for this kind of work.
NCCI hazard group E, on a scale from A (least severe claims) to G (most severe).
Some states use their own code for this work: California 4410, Delaware 0581, Michigan 4410, New Jersey 4410, Pennsylvania 0581.
Who writes class 4751, state by state
From our live eligibility engine, refreshed every day (page updated November 1, 2026). It shows who has appetite, not a price. The final decision is always the carrier's underwriter.
Instant quote available 46
By email or underwriter only 1
No market listed yet 0
State fund only 4
North Dakota (North Dakota Workforce Safety & Insurance) · Ohio (Ohio Bureau of Workers' Compensation) · Washington (Washington Department of Labor & Industries) · Wyoming (Wyoming Department of Workforce Services)
Carriers with appetite for class 4751
- Travelers · 46 states · instant quote
- CopperPoint · 19 states · instant quote
- AmTrust · 3 states · instant quote
- Clear Spring · 47 states
- V3- National Liability & Fire Insurance Company · 47 states
- Ascendant Commercial Insurance · 46 states
- Amerisafe · 28 states
- Omaha National · 28 states
- ICW Group · 22 states
- AIG · 7 states
- Accident Fund Insurance Company Of America · 5 states
What does class code 4751 cover?
Class 4751 is the NCCI workers' comp code for “Synthetic Rubber Mfg.”. Carriers use it to rate the payroll of people doing this kind of work. It sits in NCCI hazard group E.
Who writes class code 4751 workers' comp?
In our live appetite data (updated November 1, 2026), 11 carriers have appetite for class 4751 in at least one state, and 3 of them quote it instantly. An instant quote is available in 46 states. The final decision is always the carrier's underwriter.
Does every state use class code 4751?
No. In our dictionary these states use their own code for this work: California 4410, Delaware 0581, Michigan 4410, New Jersey 4410, Pennsylvania 0581. North Dakota, Ohio, Washington and Wyoming write workers' comp through the state fund.