The Protocol entered into force on 18 January 2002, and as of December 2013,166 states are party to the Protocol and another 10 states have signed but not yet ratified it.
The Protocol entered into force on 18 January 2002.166 states are party to the Protocol. This is as of December 2013. Another 10 states have signed it. This was as of December 2013. Another 10 states have yet ratified it. This was as of December 2013.