According to the US Federal news, on December 29, 2021, the US Food and Drug Administration (FDA) issued Regulation No. 2021-28159, confirmed an aqueous extract of butterfly pea flower as a color additive. The effective date of which for some food exemption certification requirements is October 5, 2021.

On September 2, 2021, FDA issued regulations to approve an aqueous extract of butterfly pea flower as a color additive in some foods.

However, FDA has not received any objections or requests for a hearing during the period of comment. Therefore, the effective date for confirming that butterfly pea flower water extract is used as a color additive for some food exemption certification requirements is October 5, 2021.