The Department of State (DOS) issued a final rule effective April 27, 2011, that broadens consular officers’ visa revocation authority. A consular officer is now authorized to revoke a nonimmigrant or immigrant visa "at any time, in his or her discretion." Consular officers can also revoke a visa provisionally while considering a final visa revocation. Previous regulations had  limited a consular officer's ability to revoke visas, to several enumerated grounds.