The IMO is the United Nations maritime watchdog.
The US on Tuesday threatened retaliation against member nations should they not agree with its position on the net-zero emission framework, which seeks to penalise polluting vessels through a carbon levy.
“The Trump administration unequivocally rejects this proposal before the IMO and will not tolerate any action that increases costs for our citizens, energy providers, shipping companies and their customers, or tourists. Our fellow IMO members should be on notice that we will look for their support against this action and not hesitate to retaliate or explore remedies for our citizens should this endeavor fail,” a joint statement by the US Secretary of State Marco Rubio, Secretary of Commerce Howard Lutnick, Secretary of Energy Chris Wright, and Secretary of Transportation Sean Duffy said.