There are no existing WTO rules specifically addressing this type of measure, and the WTO role is different. They don't take the role of policing things. It's really up to members to express concerns over that. I believe there have been some concerns raised over the CBAM at the WTO by other countries. It is yet to be seen, I think, whether that evolves into a dispute where these things will really be tested. It's a bit premature, I guess, to comment on whether that's going to cause issues.
