Connecticut’s workers’ comp paperwork has real teeth — a one-year claim window and a 28-day carrier response clock. Here’s the official map.

Official Connecticut resources

• CT Workers’ Compensation Commission — the state agency
• Verify an employer’s coverage — NCCI’s coverage verification service for CT
• Claim forms — the WCC’s official forms library
• After an injury: employer guidance — the WCC’s employer walkthrough

Key employer forms

The Employer’s First Report of Occupational Injury or Illness (FRI) is filed by the employer or its insurer — required when the worker misses at least one day — via the WCC’s FRI submission service or EDI. On the employee side, the Form 30C (Notice of Claim for Compensation) is the document that formally starts a claim and the clock that matters most.

What to do when an employee is injured

1. Get the employee medical care and record the incident details the same day
2. File the First Report (FRI) via the WCC submission service or through your carrier when a day of work is lost
3. Notify your carrier immediately — it has 28 days from a Form 30C to commence payment or deny
4. Track any Form 30C you receive and forward it to your carrier the day it arrives
5. Keep copies of everything — CT’s one-year claim window makes documentation disputes common

Deadlines that matter

Employees should report injuries immediately; a written notice of claim (Form 30C) must be filed within one year of the injury (or three years from first manifestation of an occupational disease). Once a 30C is filed, the carrier has 28 days to begin payment or contest the claim.

For rate context, see Connecticut workers’ comp rates, or start with our full Connecticut coverage guide. Need proof of coverage for a contract? We issue same-day certificates.

Connecticut forms FAQs

What is Form 30C in Connecticut?

It’s the employee’s formal Notice of Claim for Compensation. Filing it starts the claim and triggers the insurer’s 28-day window to pay or contest. Employers who receive one should forward it to their carrier immediately.

When must a Connecticut employer file a First Report of Injury?

When a work injury or illness causes the employee to lose at least one day of work — filed via the WCC’s FRI submission service or EDI, typically through your carrier.

How do I check if a CT business has workers’ comp coverage?

Connecticut coverage runs through NCCI’s verification service at ewccv.com, linked from the WCC site — searchable by employer name.