{"data":{"id":"us/31-cfr-601.4","jurisdiction":"us","citation":"31 CFR 601.4","heading":"Distinctive counterfeit deterrents.","body":"The distinctive counterfeit deterrents that may be used in the denominations of United States Federal Reserve notes as prescribed by the Secretary of the Treasury are:\n(a) Security threads containing graphics consisting of the designation “USA” and the denomination of the currency note, expressed in alphabetic or numeric characters.\n(b) Optically variable inks with material characteristics.\n(c) Non-visual characteristic inks with material characteristics.\n(d) Optically variable thread (three-dimensional (3-D) security ribbon and micro-optic stripe) visible in front or back of the currency note.\n(e) Non-visual characteristic features with material characteristics.","path":["Title 31—Money and Finance: Treasury","Subtitle B—Regulations Relating to Money and Finance","CHAPTER VI—BUREAU OF ENGRAVING AND PRINTING, DEPARTMENT OF THE TREASURY","PART 601—DISTINCTIVE PAPER AND DISTINCTIVE COUNTERFEIT DETERRENTS FOR UNITED STATES FEDERAL RESERVE NOTES"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-31.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:25Z","sha256":"f4ec3764a85b5779893b84d6e9a61765fb605bc18117194e1765edda8103aad0","source_id":"us-cfr","stale":true,"prev":"us/31-cfr-601.3","next":"us/31-cfr-601.5"},"notice":"GroundRules: Original legal text. Not legal advice."}