§ 601.2 Distinctiveness requirement.
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
(a) The Secretary of the Treasury has adopted distinctive paper and distinctive counterfeit deterrents:
(1) In which the United States has an exclusive property interest; or
(2) That are not otherwise in commercial use or the public domain and are necessary for preventing the counterfeiting of United States Federal Reserve notes.
(b) The distinctive paper and counterfeit deterrents are used in United States Federal Reserve notes.
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.