Russia announced that it will require imports of U.S. pork and beef to be free of the feed additive ractopamine after the Senate on Thursday voted to establish permanent normal trade relations with the world’s ninth economy.

Russian officials denied allegations that the decision was in retaliation for sanctions against Russian human rights abusers adopted in conjunction with the trade bill. Many countries, including the European Union and China, ban the growth promoter.

The Russian health agency in a statement on its web site late Friday said the Russian authorities would test U.S. imports themselves for an unspecified period of time.