Class code 4109: Integrated Circuit Mfg.
Class 4109 is the NCCI workers' comp code for “Integrated Circuit Mfg.”.
The facts
- Official wording (NCCI)
- Integrated Circuit Mfg.
- Industry group (our dictionary)
- Manufacturing
- Hazard group
- B
- State codes that differ
- CA 4112 · DE 0472 · MI 4150 · NJ 4150 · NY 4150 · PA 0472 · TX 4150
- Line
- Workers' comp
What it means
Class 4109 is the code carriers use to rate workers' comp payroll for this kind of work.
NCCI hazard group B, on a scale from A (least severe claims) to G (most severe).
Some states use their own code for this work: California 4112, Delaware 0472, Michigan 4150, New Jersey 4150, New York 4150, Pennsylvania 0472, Texas 4150.
Who writes class 4109, 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 47
By email or underwriter only 0
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 4109
- AmTrust · 43 states · instant quote
- Travelers · 43 states · instant quote
- CopperPoint · 19 states · instant quote
- Normandy Harbor Insurance Company · 16 states · instant quote
- PIE- Sirius America Insurance Company · 47 states
- V3- National Liability & Fire Insurance Company · 47 states
- Ascendant Commercial Insurance · 46 states
- Trean / 7710 Insurance · 46 states
- Trean / American Liberty Insurance Company · 46 states
- Omaha National · 28 states
- Amerisafe · 25 states
- Accident Insurance Company · 15 states
- AIG · 7 states
- Accident Fund Insurance Company Of America · 5 states
What does class code 4109 cover?
Class 4109 is the NCCI workers' comp code for “Integrated Circuit Mfg.”. Carriers use it to rate the payroll of people doing this kind of work. It sits in NCCI hazard group B.
Who writes class code 4109 workers' comp?
In our live appetite data (updated November 1, 2026), 14 carriers have appetite for class 4109 in at least one state, and 4 of them quote it instantly. An instant quote is available in 47 states. The final decision is always the carrier's underwriter.
Does every state use class code 4109?
No. In our dictionary these states use their own code for this work: California 4112, Delaware 0472, Michigan 4150, New Jersey 4150, New York 4150, Pennsylvania 0472, Texas 4150. North Dakota, Ohio, Washington and Wyoming write workers' comp through the state fund.