what is the name of the national governmental agency that oversees wine production,taxation,labeling and etc?

Answer 1

Think it's ATF , the Bureau of Alcohol ,Tobacco and Firearms .

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Answer 2

In the United States, the Alcohol and Tobacco Tax and Trade Bureau (TTB), a division of the Treasury Department, regulates the geographic boundaries of appellations. This is part of their responsibility to oversee the safety of wines and prevent fraud to consumers. Beyond delineating appellation boundaries, regulatory concern has not yet penetrated within the vineyards. American growers are free to plant any grape varieties they fancy and may harvest as large a crop as the vines will bear, or as their concern with quality dictates.

TTB also regulates wines imported into the United States and includes some consumer protections against fraud in foreign wine. Imported wines using an appellation label must have 75% of their contents derived from grapes grown within that designated appellation. In addition, the wine must conform "to the requirements of the foreign laws and regulations governing the composition, method of production, and designation of wines available for consumption within the country of origin."

But if the wine has 7% or less alcohol I know that the U.S. Department of Health and Human Services Food and Drug Administration oversees those particular wine beverages.