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CMS-1500 electronic submission is now mandatory

Insurers

OnBoard: Limited Release, the first phase of the Board’s new online information system, is now available!

Insurer survey CMS-1500

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Processing Workers’ Compensation Claims

Coverage Requirements for Specific Employment Situations

Board Assessments

Information and forms to pay quarterly Board assessments

Insurer Listings

Insurer ID (W Number)

Insurers and employers who have been approved to self-insure for workers’ compensation benefits in New York State are assigned a 7-character identification number beginning with a W (known as a “W Number” or “Insurer Code (ID) Number”) by the Workers’ Compensation Board. This number is used to identify workers’ compensation coverage in the Board’s insurance coverage system and to gain access to electronic case files for workers’ compensation claims (eCase) and filing of required documentation.

3C Coverage

Insurers writing out-of-state employer’s workers’ compensation insurance policies who are not authorized to write workers’ compensation and employers' liability coverage in New York by the NYS Department of Financial Services, must file the Consent to NYS Workers’ Compensation Board Jurisdiction for Non-New York Licensed Insurers (3C Coverage) with the Chair for 3C coverage to apply on a policy.

Online Services

Find links to all available online services from the Board.

Health Insurer Match Program (HIMP)

The Health Insurance Matching Program (HIMP) provides a mechanism for health insurers to seek reimbursement from employers and workers' compensation insurers for payments made for treatment that should have been covered by a workers' compensation claim.

Electronic Submission Partner Designation

Effective October 1, 2021, payers are required to have one or more designated Board-approved electronic submission partners. At least one electronic submission partner should be designated by October 30, 2021.

Latest Insurers News

Providers subject to electronic CMS-1500 mandate

August 13, 2025

Governor Hochul Appoints Freida D. Foster as Chair of New York State Workers' Compensation Board

August 12, 2025

Efficiency Enhancements: Issue 7, form updates and best practices

August 1, 2025

All CMS-1500 bills must now be submitted electronically

August 1, 2025

CMS-1500 electronic submission required starting tomorrow!

July 31, 2025

Code Enforcement webinar resources now available

July 22, 2025

WEBEX UPDATE REQUIRED! New version of the Webex application for virtual hearings

July 18, 2025

No AM hearings 7/21/25 - planned virtual hearings maintenance

July 8, 2025

New York State Workers' Compensation Board Chair Clarissa Rodriguez announces the appointment of four new Board members

June 26, 2025

Dental Fee Schedule update

June 20, 2025

New York State Workers' Compensation Board Chair announces new legislation signed by Governor Hochul will improve injured workers' access to medical treatment

May 15, 2025

Governor Hochul signs landmark legislation to strengthen and protect our workforce as part of the FY 2026 Budget

May 9, 2025

Efficiency Enhancements: Issue 6, RFA-1LC

April 22, 2025

Important updates to C-300.5 and C-312.5 forms

April 7, 2025

Updates regarding Section 32 waiver agreement forms

April 7, 2025