(a) The Department will accept voluntary deregistration requests for assault weapons that are no longer possessed by the registrant, in the form of a completed Form BOF 4546, “Notice of No Longer in Possession,” (Rev. 12/2019) hereby incorporated by reference. Deregistration requests will also be accepted for assault weapons, as defined in Penal Code section 30515, that have been modified or reconfigured to no longer meet that definition. Deregistration requests must be in writing, signed, dated, and provide the following information:

(b) Upon determining eligibility for deregistration, the Department will delete the assault weapon registration for the specified firearm(s), and, if the weapon is still in the possession of the registrant, will convert the information to a Firearm Ownership Report, form BOF 4542A (Rev. 01/2020).

(c) If the registrant has sold the weapon to a party outside of the State of California or otherwise lawfully disposed of the weapon, or if the weapon was seized by law enforcement, the Department will create a “No Longer In Possession” entry in the Automated Firearms System.

(d) Upon completion of the assault weapon deregistration, the Department will mail confirmation of deregistration and updated firearm ownership information to the registrant at the address provided on the request.