Most questions regarding food production, handling, sales and serving, including cottage food laws and regulations are handled by the state's local health department or department of agriculture, and sometimes by a city or county business registration office.
Food and Drug Administration (FDA) websiteFDA Labeling and Nutrition
Nutrition Facts Label, Label Claims, Menu and Vending Machine Labeling, Gluten-Free LabelingFDA Ingredients and Packaging
Food & Color Additives, GRAS, Food Allergens, Food Contact Substances, New Plant Varieties
U.S. Department of Agriculture (USDA) has a tool, the AskUSDA site providing information from across USDA all in one place. Just type key words or phrases into the search box. Your search will provide the top 10 results from across USDA. For the best search results, keep in mind that including "and" in the search box will exclude articles that don't include all searched words. Including "or" in the search box will include articles with any of the searched words.
If you have specific USDA questions that you cannot find answers to on the site, call (202) 720-2791 or email USDA at [email protected].
If you are looking for the national US Department of Health, that's the U.S. Department of Health & Human Services and here is the mailing address and phone number:
The U.S. Department of Health & Human Services
Hubert H. Humphrey Building
200 Independence Avenue, S.W.
Washington, D.C. 20201
Toll Free Call Center: 1-877-696-6775
Note: Please be aware that mail sent to their Washington D.C. area offices takes an additional 3-4 days to process due to security precautions.