225 ILCS 447/35-25

If a license, permanent employee registration card, or firearm control card is lost, a duplicate shall be issued upon proof of such loss together with the payment of the required fee. If a licensee decides to change the licensee's name, the Department shall issue a license in the new name upon proof that the change was done pursuant to law and payment of the required fee. Notification of a name change shall be made to the Department within 30 days after the change.