Contact Us

Arne Hoel, The World Bank

Whether you wish to file a complaint, request more information, meet with us, or comment on our work, we want to hear from you.

Contact us

Office of the Compliance Advisor/Ombudsman (CAO)

2121 Pennsylvania Avenue, NW

Washington, DC 20433, USA

Tel: + 1 202 458 1973

Fax: + 1 202 522 7400


Filing a complaint:

Complaints should be submitted:

  • in writing
  • in any language
  • by e-mail, fax, mail/post, courier, or delivered to the Office of the CAO in Washington, DC

Supporting material is not required. If you do submit supporting material, CAO will not release it without your consent.

CAO will keep the identify of complainants confidential if requested, but anonymous complaints will not be accepted.


If you are affected by a project supported by the International Bank for Reconstruction and Development (IBRD) or International Development Association (IDA), please contact the
World Bank Inspection Panel