Each year since 2009, at the International Astronautical Congress, the Nandasiri Jasentuliyana Keynote Lecture on Space Law is presented by a leading expert on space law.

The 2019 Nandasiri Jasentuliyana Keynote Lecture on Space Law was presented at the IISL colloquium during the IAC in Washington D.C., United States. It was given by Setsuko Aoki and entitled International Cooperation Mechanisms in Outer Space Activities for the Next Decade.

The keynote lecture is published in the IISL Proceedings 2019. The text of the keynote lecture can be accessed here.