Home1997 Treaties and Agreements ...Costa Rica (97-1117) – Transboundary Movement of Hazardous Waste with Amendment hide Costa Rica (97-1117) – Transboundary Movement of Hazardous Waste with Amendment TIAS November 17, 1997 Pollution: Transboundary Movement of Hazardous Waste Agreement effected by exchange of notes at San Jose September 30 and November 17, 1997; entered into force November 17, 1997. With agreement amending the agreement. Effected by exchange of notes at San Jose July 12 and September 13, 2002; entered into force October 15, 2002. Download attachment [744 KB] Tags Costa Rica Emissions and Pollution International Law, Treaties, and Agreements