The following list illustrates the convention/treaty status of each member country of the OECD or the NEA as of May 2025. Conventions/treaties with a "*" indicate that such convention/treaty is not yet in force.
| OECD & NEA member countries |
NEA member country only |
OECD member country only |
|
| Australia | Korea | Argentina | Chile |
| Austria | Luxembourg | Bulgaria | Colombia |
| Belgium | Mexico | Romania | Costa Rica |
| Canada | Netherlands | Russian Federation* | Estonia |
| Czechia | Norway | Israel | |
| Denmark | Poland | Latvia | |
| Finland | Portugal | Lithuania | |
| France | Slovak Republic | New Zealand | |
| Germany | Slovenia | ||
| Greece | Spain | ||
| Hungary | Sweden | ||
| Iceland | Switzerland | ||
| Ireland | Türkiye | ||
| Italy | United Kingdom | ||
| Japan | United States | ||
*Suspended member