CFR › Title 31 › Part 315 › §315.4831 CFR §315.48Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Denominational exchange. Reissue is not permitted solely to change denominations.(b)United States Treasury. Reissue may not be made to eliminate the United States Treasury as coowner or beneficiary.