Home2019 Treaties and Agreements ...Multilateral (19-1007) – Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution to Abate Acidification, Eutrophication, and Ground-Level Ozone hide Multilateral (19-1007) – Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution to Abate Acidification, Eutrophication, and Ground-Level Ozone TIAS Office of Treaty Affairs Pollution: Long Range Transboundary Air Done at Geneva May 4, 2012; entered into force October 7, 2019. Protocol of Convention of November 13, 1979. Agreement previously amended November 30, 1999: TIAS 13073. Download Agreement [4 MB] Tags Emissions and Pollution International Law, Treaties, and Agreements