The provisional listing and certification of FD&C Red No. 2 (amaranth) was terminated by the FDA (Federal Register, February 1976); it is no longer permitted as a colour additive in food in the United States.
The FDA terminated the provisional listing of Amaranth (FD&C Red No. 2, E123) as a food colour in Federal Register notices of 10 and 13 February 1976; it has not been permitted in US food since. The cited compliance guide does not state the reason for the delisting.