Status of ratification
In honor of this important milestone in the pursue of the protection of the Caspian Sea, the Government of I.R. of Iran organized a ceremony with Caspian ambassadors and representatives from the Ministries of Environment to celebrate the entering into force of the Tehran Convention.
Its entry into force has opened the way for a first Ministerial meeting of the Conference of Parties (COP I), which was eventually held in Baku, Azerbaijan on May 23-25 2007.
During COP I the littoral States decided to declare 12 August as the regional Caspian Day marking the importance of the Tehran Convention as the overarching legal instrument for environmental protection in the Caspian region.
The development of four ancillary Protocols, namely the Protocol on Conservation of Biological Diversity, the Protocol for the Protection of the Caspian Sea against Pollution from Land based Sources and Activities, the Protocol concerning Regional Preparedness, Response and Cooperation in Combating Oil Pollution Incidents, and the Protocol on Environment Impact Assessment in a Transboundary Context, has been assigned priority by the member states.
The first ancillary Protocol to the Tehran Convention, the Protocol Concerning Regional Preparedness, Response and Cooperation in Combating Oil Pollution Incidents ("Aktau Protocol") has been adopted and signed at the Third Meeting of the Conference of the Parties in Aktau, Kazakhstan on 12 August 2011.
The Protocol for the Protection of the Caspian Sea against Pollution from Land based Sources and Activities has been adopted and signed at the Fourth Meeting of the Conference of the Parties in Moscow, Russian Federation on 12 December 2012.