---
kind: "unit"
title: "43"
title_heading: "Public Lands"
key: "ch12/schIII"
level: "subchapter"
label: "Subchapter III"
heading: "Institution and Construction of Projects"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/43/ch12-schIII"
sections_count: 23
---

# Subchapter III — Institution and Construction of Projects

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

## Sections

- [§411. Surveys for, location, and construction of irrigation works generally](/usc/43/411.md)
- [§411a. Repealed.](/usc/43/411a.md)
- [§411a–1. Authorization of appropriations for investigations of feasibility of reclamation projects](/usc/43/411a-1.md)
- [§411b. Employment of engineers, geologists, appraisers and economists for reclamation consultation work; compensation; retired Army and Navy officers as consulting engineers](/usc/43/411b.md)
- [§412. Prerequisites to initiation of project or division of project](/usc/43/412.md)
- [§413. Approval of project by President](/usc/43/413.md)
- [§414. Appropriation for projects essential](/usc/43/414.md)
- [§415. Receipts applicable to project generally](/usc/43/415.md)
- [§416. Laws applicable to withdrawn lands; restoration to entry](/usc/43/416.md)
- [§417. Reservation of easements in public lands for reclamation projects](/usc/43/417.md)
- [§418. Private lands within project; agreement as to disposal of excess over farm unit](/usc/43/418.md)
- [§419. Contract for irrigation project; notice as to lands irrigable, unit of entry, and construction charges](/usc/43/419.md)
- [§420. Use of earth, timber, etc., from other public lands](/usc/43/420.md)
- [§421. Acquisition of lands for irrigation project; eminent domain](/usc/43/421.md)
- [§421a. Construction of distribution and drainage systems by irrigation districts or public agencies](/usc/43/421a.md)
- [§421b. Loans for construction of distribution and drainage systems; repayment contract; time period for repayment of loan; “irrigation district or other public agency” defined](/usc/43/421b.md)
- [§421c. Conditions of loan for distribution and drainage systems; reconveyance by Secretary of lands, interests in lands, and distribution works heretofore conveyed to the United States; conditions of reconveyance; rights of way](/usc/43/421c.md)
- [§421d. Effect on existing laws](/usc/43/421d.md)
- [§421e. Municipal and industrial water supply delivery and distribution; allocation of loan funds; loan repayment contract requirements; rate of interest](/usc/43/421e.md)
- [§421f. Existing loan contracts; negotiation by Secretary of amendments](/usc/43/421f.md)
- [§421g. Existing rights unaffected](/usc/43/421g.md)
- [§421h. Procedural and substantive requirements applicable to works financed by loans pursuant to sections 421a to 421h of this title](/usc/43/421h.md)
- [§422. Construction of dams across Yellowstone River](/usc/43/422.md)