Containers not acceptable for inspection
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
Any container so filled or packed as to conceal the fact that it contains anything other than naval stores within the meaning of the act or the provisions in this part, and any naval stores in a container deemed by an official inspector to be unsuitable for use as a container of naval stores in commerce, shall not be accepted for classification or grading.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.