group I:delegations with eighteen seats in the Assembly (France, Germany, Italy, Russian Federation, United Kingdom) will have five seats in the Bureau every ordinary session;
group II:delegations with between twelve and seventeen seats in the Assembly (Poland, Spain, Turkey, Ukraine) will have three seats in the Bureau every ordinary session;
group III:delegations with between five and eleven seats in the Assembly (Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Greece, Hungary, Moldova, Netherlands, Norway, Portugal, Romania, Slovak Republic, Sweden, Switzerland) will have eight seats in the Bureau every ordinary session;
group IV:delegations with between two and four seats in the Assembly (Albania, Andorra, Cyprus, Estonia, Iceland, Ireland, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, San Marino, Slovenia, "the former Yugoslav Republic of Macedonia") will have three seats in the Bureau every ordinary session.