Skip to content
Effective

MGL Chapter 140, Section 121B:
Electronic Firearms Registration

Chapter 135Referendum

Massachusetts General Laws Chapter 140, Section 121B[1], created by Chapter 135 of the Acts of 2024[2], mandates a comprehensive, real-time electronic firearms registration system operated by the Department of Criminal Justice Information Services (DCJIS). It requires registration of all firearms possessed, manufactured, or assembled in the Commonwealth.

Key Requirements

Registration information must include the registrant's name, address, contact information, license type and number, firearm type, acquisition date, source of acquisition, whether the firearm is privately made, and a sworn statement of lawful eligibility. Registration timelines vary by category:

  • Standard acquisitions: At time of acquisition
  • New residents and heirs: Within 60 days for persons importing firearms or receiving through estate distribution
  • Dealers, gunsmiths, distributors, and manufacturers: Within 7 days
  • Privately made firearms: Within 7 days
  • All transactions: All parties must report within 7 days
  • Loss or theft: Within 7 days to the licensing authority, state police, and DCJIS, with automatic notification to the licensing authority where the owner resides

Penalties

  • First offense: Fine up to $1,000
  • Second offense: Fine up to $7,500 or imprisonment up to 6 months, or both
  • Third or subsequent offense: Fine up to $10,000 or imprisonment of not less than 1 year nor more than 5 years, or both

Failure to report is also cause for suspension or permanent revocation of a license.

Exceptions

  • Firearms delivered to law enforcement for destruction
  • Firearms possessed by common carriers during regular transport
  • Firearms of nonresidents lawfully traveling through the Commonwealth (if stored per Sections 131C and 131L)
  • Property of the United States government
  • Firearms produced by federally licensed manufacturers not for sale in the Commonwealth

Related Provisions

Section 121C establishes the serialization requirements that feed into this registration system. Section 121E draws from this system to populate the public firearms data dashboard. Section 128A requires all private transfers to be processed through this system. Section 123 requires dealer loss and theft reporting through this system.

Referendum Status

Created by Chapter 135, this section would be repealed if the November 2026 referendum succeeds.