Carry restrictions The Boston Police Department's Licensing Unit may place restrictions on your firearms license. If you request an unrestricted license to carry, you must show good reason to fear injury to yourself or your property, or some other proper purpose or reason, consistent with Massachusetts state law. When applying for an unrestricted license, you must send our Licensing Unit a letter stating this reason. You’ll need to include any supporting documents with this application. You’ll need to include any supporting documents with this application. We have more information on license restrictions. Boston Assault Weapons Ban Boston’s assault weapons ban expands on the state law. You can learn more about this law and weapons prohibited through the City provision, and on the state’s assault weapon webpage.

Change of address If you change your address, you must tell the: Boston Police Department

chief of police in your new town or City, and

the Department of Criminal Justice Information Services commissioner. If you don’t do this, you may get your license suspended or revoked. You need to complete and return the state's change of address form to these officials.