Freedom of movement within Oman and repatriation are permitted, but it can be difficult to obtain permission to travel abroad or emigrate. Only since 2010 have married women been able to secure passports without their husbands' consent. Citizens require government permission to marry foreigners unless the latter are citizens of Gulf Cooperation Council countries. Permission is not always granted. If a citizen marries a foreigner abroad without approval, the foreign spouse may be denied entry into Oman and any children of the marriage may be denied citizenship of Oman.