§ 504.3 Preservation of property.
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
It is unlawful willfully to destroy, damage, or remove property or any part thereof. Any parcels, portfolios, bags, or containers of any kind may be required to be opened and the contents identified prior to removal from the premises. In order to remove any property from the premises, a properly completed property pass signed by an authorized official of the Smithsonian Institution may be required prior to removal.
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.