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The Priority Africa and External Relations Sector (PAX) ensure liaison with Member States and with Associate Members.

Relations with Member States are also ensured by the Directors and Heads of the UNESCO Regional, Cluster and National Offices.

There are two definitions of regions at UNESCO:

• Definition of regions with a view to the execution by the Organization of regional activities
  (see )
• Groupings of Member States for the purpose of elections to the Executive Board
  (see )

Most Member States have established  which, headed by Ambassadors, undertake liaison between the Organization and their governments.

All Member States have established a . The UNESCO National Commissions are national cooperating bodies set up by the Member States for the purpose of associating their governmental and non-governmental bodies with the work of the Organization.

Member States and Associate Members designate one or several Ministries responsible for relations with UNESCO and/or Ministries in UNESCO's fields of competence. UNESCO emphasizes its efforts to involve nationally (Parliamentarians) and locally elected representatives (Cities and Local Authorities) in its action.