§601.4. Distinctive counterfeit deterrents.
31 C.F.R. § 601.4
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:
Security threads containing graphics consisting of the designation “USA” and the denomination of the currency note, expressed in alphabetic or numeric characters.
Optically variable inks with material characteristics.
Non-visual characteristic inks with material characteristics.
Optically variable thread (three-dimensional (3-D) security ribbon and micro-optic stripe) visible in front or back of the currency note.
Non-visual characteristic features with material characteristics.
Notes, amendments, and revision history
Authority
Authority: 5 U.S.C. 301; 12 U.S.C. 418, 421; 18 U.S.C. 474A; 31 U.S.C. 321.
Source
Source: 88 FR 43063, July 6, 2023, unless otherwise noted.