(a)What a COLA authorizes. An approved TTB Form 5100.31 authorizes the bottling of distilled spirits covered by the certificate of label approval (COLA), as long as the container bears labels identical to the labels appearing on the face of the COLA, or labels with changes authorized by TTB on the COLA or otherwise (such as through the issuance of public guidance available on the TTB website at https://www.ttb.gov). ). (b)When to obtain a COLA. The COLA must be obtained prior to bottling. No bottler