Monitoring inspections of radioactive materials in foods are planned and implemented by prefectural governments based on nationally established guidelines. Agriculture, forestry and fisheryFarm products undergo thorough monitoring inspections, etc. before shipping and the results are publicly disclosed on websites belonging to the respective local authorities and Ministry of Health, Labour and Welfare. More than 200,000 such inspections are implemented every year.
If any food items are found to be in excess of the standard, they are not released for distribution onto domestic or international markets. Moreover, if foods in excess of the standard are confirmed to have a geographical spread, "shipping restrictions" are implemented.
A joint team organized by the IAEA (International Atomic Energy Agency) and FAO (Food and Agriculture Organization of the United Nations) has assessed Japan's monitoring methods and response to issues of radioactive contamination in foods as follows: "We consider them to be appropriate and understand that the relevant authorities implement effective control over the food supply chain (the flow by which foods are transferred from producers, via distributors and stores, to consumers)".
(See "Q Are foods from Fukushima safe?"concerning inspection results).