---
kind: "unit"
title: "43"
title_heading: "Public Lands"
key: "ch12/schV"
level: "subchapter"
label: "Subchapter V"
heading: "Administration of Existing Projects"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/43/ch12-schV"
sections_count: 18
---

# Subchapter V — Administration of Existing Projects

Title 43 — Public Lands › Chapter 12 — Reclamation and Irrigation of Lands by Federal Government

## Sections

- [§423. Permanently unproductive lands; exclusion from project; disposition of water right](/usc/43/423.md)
- [§423a. Construction charges on permanently unproductive lands already paid; disposition](/usc/43/423a.md)
- [§423b. Suspension of payment of construction charges against areas temporarily unproductive](/usc/43/423b.md)
- [§423c. Exchange of unpatented entries; entries, farms or private lands, eliminated from project; rights not assignable; rights of lienholders; preference to ex-service men](/usc/43/423c.md)
- [§423d. Amendment of existing water right contracts by Secretary of the Interior](/usc/43/423d.md)
- [§423e. Completion of new projects or new division; execution of contract with district as condition precedent to delivery of water; contents of contract; cooperation of States with United States; limitations on sale of land](/usc/43/423e.md)
- [§423f. Purpose of sections 423 to 423g and 610](/usc/43/423f.md)
- [§423g. Adjustment of water right charges as final adjudication on projects and divisions named](/usc/43/423g.md)
- [§423h. Delivery of water to excess lands upon death of spouse](/usc/43/423h.md)
- [§424. Disposal of lands classified as temporarily or permanently unproductive; persons who may take](/usc/43/424.md)
- [§424a. Sale of unproductive lands; terms; area purchasable; tracts included](/usc/43/424a.md)
- [§424b. Application of certain statutes to lands sold](/usc/43/424b.md)
- [§424c. Issuance of patents; recitals in patents; reservations](/usc/43/424c.md)
- [§424d. Use of moneys collected from sales, project construction charges and water rentals respecting unproductive lands](/usc/43/424d.md)
- [§424e. Authority of Secretary of the Interior; rules and regulations](/usc/43/424e.md)
- [§425. Exemption of lands owned by States, etc., from acreage limitation on receipt of irrigation benefits; determination of exempt status](/usc/43/425.md)
- [§425a. Eligibility of transferred lands owned by States, etc., for receipt of water from a Federal reclamation project, division, or unit; conditions of eligibility; purchase price](/usc/43/425a.md)
- [§425b. Receipt of project water by lessees of irrigable lands owned by States, etc.; time limitation; applicability of acreage limitations](/usc/43/425b.md)