Home2022 Treaties and Agreements ...Estonia (22-1221) – Protocol Amending and Extending Agreement for Scientific and Technological Cooperation hide Estonia (22-1221) – Protocol Amending and Extending Agreement for Scientific and Technological Cooperation TIAS Office of Treaty Affairs December 21, 2022 Scientific and Technical Cooperation Signed at Tallinn October 19, 2020; entered into force December 21, 2022. Amendment and extension of agreement signed December 11, 2008: TIAS 09-1026. Download Agreement [1 MB] Tags Estonia Scientific and Technological Cooperation Treaties