The creation of the EurAsEC Customs Union and Russia’s ascension into the WTO has led to a radical change in Russia’s anti-dumping legislation. Anti-dumping regulation ceased to fall under national jurisdiction and was transferred to the Eurasian Economic Commission, a supranational regulator. This article analyzes the new anti-dumping legislation of the EurAsEC Customs Union, anti-dumping procedures, their principles, participants, and main stages, as well as the legal treatment of information used in the anti-dumping regulation.