Hi,
I think this is what you're looking for. https://www.ttb.gov/images/pdfs/rulings/2008-3.pdf
"Section 117(a)(7) of the FAA Act (27 U.S.C. 211(a)(7)) defines the term "malt
beverage" as "a beverage made by the alcoholic fermentation of an infusion or
decoction, or combination of both, in potable brewing water, of malted barley with hops,
or their parts, or their products, and with or without other malted cereals, and with or
without the addition of unmalted or prepared cereals, other carbohydrates or products
prepared therefrom, and with or without the addition of carbon dioxide, and with or
without other wholesome products suitable for human food consumption." The same
definition appears in the TTB regulations at 27 CFR 7.10."
The ruling goes on into more detail about beer vs malt beverages, malt substitutes, the various definitions of beer, and heavily cites CFR, so it should have everything you need.
Let me know if you have any other questions, and, unlike a lot of federal agencies, TTB is also very helpful if you just give them a call.
Cheers,
Kevin
------------------------------
Kevin McCabe, PhD
Founder
Double Strand Consulting
kevin@doublestrandconsulting.comhttps://www.doublestrandconsulting.com/ASBC Alternative Beverage Subcommittee Chair
ASBC Technical Committee
MBAA Webinar Committee Chair
TTB Certified Chemist
------------------------------