What Counts as a "Locked Container" in Massachusetts

MGL Chapter 140, Section 131L generally requires a stored firearm to be secured in a locked container or equipped with an engaged qualifying lock or safety device.^[1]

Statutory Definition

Section 121 defines "secured in a locked container" as secured in a container that can be unlocked only by a key, combination, or similar means. The definition expressly includes a locked trunk not accessible from the passenger compartment, a locked console, and a locked glovebox.^[2] A locked vehicle by itself is not listed as a substitute for a qualifying container.

Biometric and Quick-Access Safes

The statute does not name biometric readers. A biometric mechanism may fit the phrase "similar means," but no controlling Massachusetts appellate decision identified in this review decides that question for every device. Compliance can depend on whether the container is actually locked and resists unauthorized access.

Carried or Under Control

Section 131L does not apply while a firearm is carried by or under the control of its owner or another lawfully authorized user. "Under control" is fact-specific. It should not be treated as a categorical rule that any nearby, unlocked firearm is compliant. When the firearm is stored or kept and no exception applies, use a qualifying locked container or engaged safety device.

Practical Check

• Confirm that the container requires a key, combination, or comparable access method.
• Confirm that the locking mechanism is engaged whenever the firearm is stored.
• Do not rely on a locked passenger compartment alone.
• For an unusual container or access arrangement, seek fact-specific legal guidance.