16 CFR § 300.6
Labels to be avoided
February 12, 2021
Stamps, tags, labels, or other marks of identification, which are insecurely attached, or which in the course of offering the product for sale, selling, reselling, transporting, marketing, or handling incident thereto are likely to become detached, indistinct, obliterated, illegible, mutilated, inaccessible, or inconspicuous, shall not be used.