# Offering of United States Savings Bonds, Series I
> **Fiscal Service** · Final rule. · Published 2008-11-04 · Effective 2008-11-04 · 73 FR 65543
## Document
- **Document number:** E8-26173
- **Category:** other
- **Sub-agency:** Fiscal Service
- **Federal Register citation:** 73 FR 65543
- **CFR reference:** 31 CFR 359
- **Publication date:** 2008-11-04
- **Effective date:** 2008-11-04
## Abstract

A Series I savings bond accrues interest based on both a fixed rate of return and a semiannual inflation rate. A single, annual interest rate called the composite rate reflects the combined effects of the fixed rate and the semiannual inflation rate. This amendment clarifies that the fixed rate of return and the composite rate will always be greater than or equal to 0%. This amendment is for clarification purposes only and makes no substantive change to the existing regulations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/11/04/E8-26173/offering-of-united-states-savings-bonds-series-i)
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