; and (B) by striking any essentially identical feature or device adapted to the making of any such obligation or security, and inserting any material or other thing made after or in similitude of any such deterrent, ; and (3) by adding at the end the following: (d) Whoever has in his control, custody, or possession any obligation or security of the United States or any foreign government from which the ink or other distinctive counterfeit deterrent has been completely or partially removed, except under the authority of the Secretary of the Treasury, is guilty of a class B felony. . 13. Prepaid access devices, digital currencies, or other similar instruments (a) In general Section 5312(a) of title 31, United States Code, is amended— (1) in paragraph (2)(K)— (A) by inserting prepaid access devices, digital currency, after money orders, ; and (B) by inserting before the semicolon at the end the following: , or any digital exchanger or tumbler of digital currency ; (2) in paragraph (3)(B), by inserting prepaid access devices, after delivery, ; and (3) by adding at the end the following: (7) prepaid access device means an electronic device or vehicle, such as a card, plate, code, number, electronic serial number, mobile identification number, personal identification number, or other instrument, that provides a portal to funds or the value of funds that have been paid in advance and can be retrievable and transferable at some point in the future. . (b) GAO report Not later than 18 months after the date of enactment of this Act, the Comptroller General of the United States shall submit to Congress a report on— (1) the impact the amendments made by subsection (a) have had on law enforcement, the prepaid access industry, and consumers