Minnesota Administrative Rules
Agency 171 - Public Safety Department
Chapter 7504 - FIREARMS DEALERS; SECURITY STANDARDS
Part 7504.0200 - SECURITY MEASURES FOR SMALL FIREARMS DEALERS

A. The door to a safe must be recessed or flush and made of at least seven gauge steel. The body of a safe must be made of hot rolled steel of at least 12 gauge thickness. A safe must have an Underwriters Laboratory (UL) listed Group 2 combination lock.

B. A rod or cable used to secure a pistol must be hardened steel. The rod or cable must be at least one-fourth inch in diameter. The rod or cable must be secured with a hardened steel lock which has a shackle that is protected or shielded from attack by a bolt cutter.

C. No more than five pistols may be affixed to any one rod or cable.

D. The safe, gun cabinet, rod, or cable must be anchored to prevent its removal from the premises.

E. The door to a gun cabinet must be made of at least 14 gauge steel. The door may be recessed, flush, or overlapping. If the door is flush or overlapping, it must be designed to conceal the location of the locking bolts and hinges from the outside of the cabinet. The door must be reinforced and must be attached to the body by one continuous hinge or at least two hinges that are located either inside or outside the body. If the hinges are located outside the body of the safe, the safe must have an interior locking system consisting of permanent or moveable locking pins securing the door from the inside when it is in the closed position. The body of a gun cabinet must be made of hot rolled steel of at least 14 gauge thickness, and must be continuously welded to create a single, solid structure. A gun cabinet must have either a UL-listed group two combination lock or a UL-listed key lock that is encased in a high security, drill-resistant lock body. A key lock must use a restricted key that can only be duplicated by a factory-authorized source.