The International Whaling Commission (IWC) was set up under the ICRW to decide hunting quotas and other relevant matters based on the findings of its Scientific Committee. Non-member countries are not bound by its regulations and conduct their own management programs. It regulates hunting of 13 species of great whales, and has not reached consensus on whether it may regulate smaller species.

The IWC voted on July 23, 1982, to establish a moratorium on commercial whaling of great whales beginning in the 1985–86 season. Since 1992, the IWC's Scientific Committee has requested that it be allowed to give quota proposals for some whale stocks, but this has so far been refused by the Plenary Committee.

At the 2010 meeting of the International Whaling Commission in Morocco, representatives of the 88 member states discussed whether or not to lift the 24-year ban on commercial whaling. Japan, Norway and Iceland have urged the organisation to lift the ban. A coalition of anti-whaling nations has offered a compromise plan that would allow these countries to continue whaling, but with smaller catches and under close supervision. Their plan would also completely ban whaling in the Southern Ocean. More than 200 scientists and experts have opposed the compromise proposal for lifting the ban, and have also opposed allowing whaling in the Southern Ocean, which was declared a whale sanctuary in 1994. Opponents of the compromise plan want to see an end to all commercial whaling, but are willing to allow subsistence-level catches by indigenous peoples.

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