31 C.F.R. § 363.39

Will I receive a confirmation of my request to purchase a Treasury security?

Read at: eCFRecfr.gov CornellLII GovInfogovinfo.gov CasesGoogle Scholar

At the time that you submit a request to purchase a Treasury security through your TreasuryDirect ® account, we will make available a printable online confirmation of your request. Final confirmation will occur when the security is issued into your account. You will not receive a mailed confirmation.