According to the Federal Trade Commission, the Fair Packaging and Labeling Act directs the “Federal Trade Commission and the Food and Drug Administration to issue regulations requiring that all “consumer commodities” be labeled to disclose net contents, identity of commodity, and name and place of business of the product’s manufacturer, packer, or distributor.
The Food and Drug Administration (FDA) administers the FPLA with respect to foods, drugs, cosmetics, and medical devices. The FTC administers the FPLA with respect to other ‘consumer commodities’ that are consumed or expended in the household.”
The National Institute of Standards and Technology (NIST) has an excellent overview of labeling requirements. It also has a helpful list of product categories and the appropriate agency that governs that category.