19 U.S. Code § 1681 - Definitions
The term “primary packaging” refers to the permanent packaging inside of the innermost cellophane or other transparent wrapping and labels, if any. Warnings or other statements shall be deemed “permanently imprinted” only if printed directly on such primary packaging and not by way of stickers or other similar devices.
2006—Par. (3). Pub. L. 109–432 added par. (3).
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