---
kind: "section"
citation: "16 U.S.C. § 460l–21"
title: "16"
title_heading: "Conservation"
number: "460l–21"
heading: "Definitions"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/16/460l-21"
units:
  - "Chapter 1 — National Parks, Military Parks, Monuments, and Seashores"
  - "Subchapter LXIX — Outdoor Recreation Programs"
  - "Part C — Water Resources Projects"
---

# §460l–21. Definitions


As used in this part:

- (a) The term “[project](/usc/16/410r–5.md?p=c-4)” shall mean a [project](/usc/16/410r–5.md?p=c-4) or any appropriate [unit](/usc/16/430f–7.md?p=4) thereof.
- (b) The term “separable costs,” as applied to any [project](/usc/16/410r–5.md?p=c-4) purpose, means the difference between the [capital cost](#e) of the entire multiple-purpose [project](/usc/16/410r–5.md?p=c-4) and the [capital cost](#e) of the [project](/usc/16/410r–5.md?p=c-4) with the purpose omitted.
- (c) The term “joint costs” means the difference between the [capital cost](#e) of the entire multiple-purpose [project](/usc/16/410r–5.md?p=c-4) and the sum of the [separable costs](#b) for all [project](/usc/16/410r–5.md?p=c-4) purposes.
- (d) The term “feasibility report” shall mean any report of the scope required by the Congress when formally considering authorization of the [project](/usc/16/410r–5.md?p=c-4) of which the report treats.
- (e) The term “capital cost” includes interest during construction, wherever appropriate.

## Source credit

(Pub. L. 89–72, § 10, July 9, 1965, 79 Stat. 218.)

## Notes

### Editorial Notes

### References in Text

This part, referred to in text, was in the original “this Act”, meaning Pub. L. 89–72, which enacted sections 460l–12 to 460l–21 of this title and amended former section 460l–5(a) and section 662(d) of this title.