The Office of Consumer Affairs and Business Regulation cannot provide legal advice or legal opinions. If you have questions concerning the specific application or interpretation of the law, you should consult with an attorney.

 

DOB Logo

1000 Washington Street, 10th Floor
Boston, MA 02118-6400
Phone: (617) 956-1500
Fax: (617) 956-1599
Consumer Line: (617) 956-1501 or 800-495-2265 toll free (MA only)
Website: www.mass.gov/dob

DTC Logo

1000 Washington Street, Suite 820
Boston, Massachusetts 02118-6500
Phone: (617) 305-3580
Fax: (617) 478-2591
Consumer Line: (617) 305-3531 or 800-392-6066 toll free (MA only)
Website: www.mass.gov/dtc

DOI Logo

1000 Washington Street, Suite 810
Boston MA 02118-6200
Detailed DOI Contact Information
Phone: (617) 521-7794
Fax: (617) 753-6830
Consumer Line: (877) 563-4467
Website: www.mass.gov/doi

DPL Logo

1000 Washington Street, Suite 710
Boston, Massachusetts 02118-6100
Detailed DPL Contact Information
Phone: (617) 727-3074
Fax: (617) 727-1944
Consumer Line: (617) 727-7406
Website: www.mass.gov/dpl

DOS Logo

One Ashburton Place, Room 1115
Boston, MA 02108
Phone: (617) 727-3480
Fax: (617) 727-5705
Website: www.mass.gov/standards

Your questions and comments are important to us and we will address them as quickly as possible.

We invite you to start by looking at the Most Popular Searches on our home page.

If you cannot find the answer to your question(s) on any of the pages referenced above, feel free to contact us. The fastest way to get your questions answered is to call us.

DOB Logo

 

Ten Park Plaza, Suite 5170
Boston, MA 02116
Phone: (617) 973-8700
Fax: (617) 973-8799
Website: mass.gov/consumer
Consumer Hotline:
(617) 973-8787 or
888-283-3757 toll free (MA only)
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The Massachusetts Office of Consumer Affairs and Business Regulation can assist CONSUMERS who are Massachusetts residents or have conducted business with a Massachusetts-based company. If you are not a Massachusetts resident AND you have a complaint about an out-of-state business, please contact your local consumer affairs department or your state's Attorney General's Office for assistance.

 

MassRelay Customer Service is available 7 days a week, 24 hours per day, 365 days a year
Deaf and Hard of Hearing Users: 800-720-3480
Hearing Users: 800-720-3479

Walk-In and Hotline Hours
Monday - Friday
9 am to 4:30 pm

Directions to the Consumer Affairs Main Office