Office of Treaty Affairs
Scientific and Technological Cooperation
Signed at Tokyo January 16, 2026; entered into force January 20, 2026.
Protocol extending the agreement of June 20, 1988, as amended and extended. Agreement previously extended June 16, 1998: TIAS 98-620; March 19, 1999: TIAS 98-620; May 19, 1999: TIAS 98-620; July 16, 1999: TIAS 98-620; and July 19, 2004: TIAS 98-620; and April 23, 2014: TIAS 14-720.
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