NCLO-CIP prepared an information letter for the “Caspian Sea Day”-2024 celebration and circulated it to the Russian participants of the Caspian Sea national network of public and other environmentally oriented organizations along with other information materials,including a draft information brochure on the 20th anniversary of the Tehran Convention signing. Based on those materials, representatives of the public and other interested parties had the opportunity to present in a brief systematic form a chronology of historical events and current activities within the framework of the Tehran Convention, including the national “Caspian Sea Day” celebrations.