31 CFR §359.47
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
You may only purchase book-entry Series I savings bonds online through your New Treasury Direct account. You may pay for your securities through a debit to your designated account at a United States depository financial institution, or by applying the redemption proceeds of a certificate of indebtedness held in your New Treasury Direct account.