---
kind: "section"
citation: "16 U.S.C. § 228e"
title: "16"
title_heading: "Conservation"
number: "228e"
heading: "Cooperative agreements for protection and unified interpretation of enlarged park; scope of agreements"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/16/228e"
units:
  - "Chapter 1 — National Parks, Military Parks, Monuments, and Seashores"
  - "Subchapter XXIV — Grand Canyon National Park"
---

# §228e. Cooperative agreements for protection and unified interpretation of enlarged park; scope of agreements


In the administration of the Grand Canyon National [Park](/usc/16/410r–5.md?p=c-3), as enlarged by sections [228a](/usc/16/228a.md) to [228j](/usc/16/228j.md) of this title, the [Secretary](/usc/16/410r–5.md?p=c-1) is authorized and encouraged to enter into cooperative agreements with other Federal, [State](/usc/16/590q.md?p=a), and local public departments and agencies and with interested [Indian tribes](/usc/16/544.md?p=g) providing for the protection and interpretation of the Grand Canyon in its entirety. Such agreements shall include, but not be limited to, authority for the [Secretary](/usc/16/410r–5.md?p=c-1) to develop and operate interpretative facilities and programs on lands and waters outside of the boundaries of such [park](/usc/16/410r–5.md?p=c-3), with the concurrence of the [owner](/usc/16/429b–3.md?p=4) or [administrator](/usc/16/450rr–1.md?p=a) thereof, to the end that there will be a unified interpretation of the entire Grand Canyon.


## Source credit

(Pub. L. 93–620, § 6, Jan. 3, 1975, 88 Stat. 2090.)