---
type: "LegalText"
title: "25 U.S.C. § 40"
description: "Limits of superintendencies, agencies, and sub­agencies"
jurisdiction: "us"
corpus: "united_states_code"
kind: "code_section"
title_number: 25
title_name: "INDIANS"
chapter_number: "2"
chapter_name: "OFFICERS OF INDIAN AFFAIRS"
section: "40"
citation: "25 U.S.C. § 40"
status: "current"
release_point: "119-100"
release_date: "2026-06-26"
source: "official"
source_url: "https://uscode.house.gov/download/releasepoints/us/pl/119/100/xml_usc25@119-100.zip"
source_identifier: "/us/usc/t25/s40"
source_file: "data/legal/raw/us/code/title-25/usc25.xml"
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text_hash: "d04111d7303991094e1ee6e3eb72752752f63eb3321df2a53c5306e390c9d344"
retrieved_at: "2026-07-04"
confidence: "official"
tags: ["legal", "us-code"]
---

# 25 U.S.C. § 40 - Limits of superintendencies, agencies, and sub­agencies

## Text

The limits of each superintendency, agency, and subagency shall be established by the Secretary of the Interior, either by tribes or geographical boundaries.

(R.S. § 2066.)

## Notes

Editorial Notes

Codification R.S. § 2066 derived from acts June 30, 1834, ch. 162, § 7, 4 Stat. 736; Mar. 3, 1847, ch. 66, § 1, 9 Stat. 203.

Executive Documents

Transfer of Functions For transfer of functions of other officers, employees, and agencies of Department of the Interior, with certain exceptions, to Secretary of the Interior, with power to delegate, see Reorg. Plan No. 3 of 1950, §§ 1, 2, eff. May 24, 1950, 15 F.R. 3174, 64 Stat. 1262, set out in the Appendix to Title 5, Government Organization and Employees.