---
kind: "section"
citation: "43 U.S.C. § 618e"
title: "43"
title_heading: "Public Lands"
number: "618e"
heading: "Interest payments; rate"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/43/618e"
units:
  - "Chapter 12A — Boulder Canyon Project"
  - "Subchapter II — Boulder Canyon Project Adjustment Act"
---

# §618e. Interest payments; rate


Whenever by the terms of the Project Act [[43 U.S.C. 617](/usc/43/617.md) et seq.] or this subchapter payment of interest is provided for, and whenever interest shall enter into any computation thereunder, such interest shall be computed at the rate of 3 per centum per annum, compounded annually: Provided, That the respective rates of interest on appropriated funds advanced for the visitor facilities program, as described in [section 619(a) of this title](/usc/43/619.md?p=a), shall be determined by the [Secretary](/usc/43/31b.md?p=7) of the Treasury, taking into consideration average market yields on outstanding marketable obligations of the United States with remaining periods to maturity comparable to the reimbursement period of the program during the month preceding the fiscal year in which the costs of the program are incurred. To the extent that more than one interest rate is determined pursuant to the preceding sentence, the [Secretary](/usc/43/31b.md?p=7) of the Treasury shall establish for repayment purposes an interest rate at a weighted average of the rates so determined.


## Source credit

(July 19, 1940, ch. 643, § 6, 54 Stat. 777; Pub. L. 98–381, title I, § 104(a)(5), Aug. 17, 1984, 98 Stat. 1335.)

## Notes

### Editorial Notes

### References in Text

The Project Act, referred to in text, is defined in section 618k of this title.

### Amendments

1984—Pub. L. 98–381 inserted proviso relating to rates of interest on appropriated funds advanced for visitors’ facilities program.