501 CMR 20.11
Unused Serial Numbers/Transfer of Serial Numbers
(1) The unique firearm serial number assigned by DCJIS shall be used to serialize the firearm
identified in the request for a unique serial number. If for any reason, the requestor does not use
the assigned serial number, the requestor must notify DCJIS.
Firearm serial numbers assigned by DCJIS are non-transferable. Transfer of a serial
number to a firearm other than the one identified in the request is expressly prohibited.