Department of Industrial Accidents (DIA)

Department of Industrial Accidents

The Department of Industrial Accidents (DIA) oversees the Massachusetts workers’ compensation system.

Address

1 Congress St., Suite 100, Boston, MA 02114
directions 

Phone

Main (617) 727-4900

This line is open 8 a.m. to 5 p.m., M-F

Toll Free (Mass. Only) (800) 323-3249

This line is open 8 a.m. to 5 p.m., M-F

TDD (Hard of hearing) (800) 224-6196

This line is open 8 a.m. to 5 p.m., M-F

Online

Info2@massmail.state.ma.us
Login to your DIA account 
Verify workers' compensation coverage 
Our Organization 
Department of Industrial Accidents (DIA) logo

Who we serve

As the court system for workers’ compensation cases, we help injured workers, employers, attorneys, and insurers among others. We resolve disputes as to whether benefits are due or should be stopped. We are responsible for making sure employers in Massachusetts have workers’ compensation insurance.

What do you need help with?

Featured services

Workers' Compensation for Injured Workers 
DIA Online Services 
Department of Industrial Accidents Forms 

More services

Workers' Compensation for Attorneys 
Workers' Compensation for Employers 
Workers' Compensation for Insurers 
Best Practices Before the DIA  
DIA Key Resources 
Department of Industrial Accidents Publications 
See all services 

Recent news & announcements

News

Workplace Safety Grant Program Application Announcement Fiscal Year 2019 

4/23/2018 Department of Industrial Accidents

Workplace Safety Grant Program Application Announcement Fiscal Year 2019

News

2018 Medical Reimbursement Rate Review for Workers’ Comp. Cases 

4/23/2018 Executive Office of Health and Human Services

See all news and announcements

Upcoming Events

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Locations

Location Details 

Related organizations

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