501 C.M.R. 19.10
Whoever fails to register a firearm in accordance with M.G.L. c. 140, § 121B shall be subject to criminal penalties as provided for in M.G.L. c. 140, § 121B(e). Whoever fails to report a transaction, loss or theft of a firearm shall be subject to criminal penalties as provided for in M.G.L. c. 140, § 121B(e) Whoever violates M.G.L. c. 140, § 121B shall be subject to suspension or permanent revocation of their license, card, or permit.