16 CFR § 300.15
Labeling of containers or packaging of wool products
February 12, 2021
When wool products are marketed and delivered in a package which is intended to remain unbroken and intact until after delivery to the ultimate consumer, each wool product in the package, except hosiery, and the package shall be labeled with the required information. If the package is transparent to the extent it allows for a clear reading of the required information on the wool product, the package is not required to be labeled.
[50 FR 15106, Apr. 17, 1985]