The Customs Union's regulations, based on Soviet standards, do not differentiate between organic and inorganic arsenic in marine resources, leading to a ban on seafood with excess arsenic and causing issues for fishermen, particularly in the Far Eastern and Northern fishing basins. The deputy head of Rosrybolovstvo, Vasily Sokolov, stated that the problem of determining arsenic levels in fish products has been resolved by scientific institutes. However, the Research Center for Nutrition and Biotechnology, VNIRO, and Rosrybolovstvo's proposed changes to food safety regulations have been criticized by Rospotrebnadzor, with its head of the department of sanitary welfare, Irina Shevkun, stating that there is no significant problem with arsenic in fish products in Russia.