Pesticides in the US are not NSF or "National Science Foundation" approved. They are EPA registered. There is a big difference. All pesticides have to go through a rigorous registration process that involved hundreds of tests and up to 250 million dollars in cost. The ultimate decision by the EPA is to "register" the product. The EPA has always made it very clear that they do not "approve" anything. That is a legal definition. FYI
Yes this product is labeled for use in Food areas. Here is a link to the label or "directions" so that you can see exactly what is allowed.
Microcare is a great product, one of my favorites.
Hope this helps.