36 CFR § 51.86 - What encumbrances require the approval of the Director?

---
identifier: "/us/cfr/t36/s51.86"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "36 CFR § 51.86 - What encumbrances require the approval of the Director?"
title_number: 36
title_name: "Parks, Forests, and Public Property"
section_number: "51.86"
section_name: "What encumbrances require the approval of the Director?"
chapter_name: "NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR"
part_number: "51"
part_name: "CONCESSION CONTRACTS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "54 U.S.C. 101901-101926 and title IV of the National Parks Omnibus Management Act of 1998 (Pub. L. 105-391)."
regulatory_source: "65 FR 20668, Apr. 17, 2000, unless otherwise noted."
cfr_part: "51"
---


# 51.86 What encumbrances require the approval of the Director?

The concessioner may not encumber, pledge, mortgage or otherwise provide as a security interest for any purpose (such transactions collectively referred to as “encumbrances” for purposes of this part), without the prior written approval of the Director, any of the following:

(a) Any concession contract;

(b) Any rights to operate under or manage performance under a concession contract as a subconcessioner or otherwise;

(c) Any controlling interest in a concessioner or concession contract; or

(d) Any leasehold surrender interest or possessory interest obtained under a concession contract.