One month visas are available at the international airports in Phnom Penh and Siem Reap and at all overland border crossings except Moc Bai. Two passport sized photos are required.
Tourist and business visas can be renewed, although tourist visas can only be extended once. Visa extensions are granted in Phnom Penh by the Direction des Etrangers, an office of the Ministry of Information.
A non-tourist visa can be extended for various periods of time up to one year.
For further information, please contact your nearest Cambodian Embassy or Consulate prior to arrival.