Consular birth registration is available for those who establish entitlement to British nationality at birth overseas. This is especially helpful when the jurisdiction in question does not allow multiple citizenship or the registration of an illegitimate child's birth. Prior to 1983, such registrations were accepted as proof of British nationality alone. Pursuant to a Reform Order by the Foreign and Commonwealth Office, new consular birth registrations issued for children born after 1 January 1983, and certificates for people born before that date re-issued starting 1 January 2014, are no longer accepted as stand-alone proof of British nationality.