[Code of Federal Regulations] [Title 25, Volume 1] [Revised as of April 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 25CFR173] [Page 627] TITLE 25--INDIANS CHAPTER I--BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR PART 173_CONCESSIONS, PERMITS AND LEASES ON LANDS WITHDRAWN OR ACQUIRED IN CONNECTION WITH INDIAN IRRIGATION PROJECTS--Table of Contents Sec. 173.20 Revocation of permits. Any permit issued pursuant to this part may be revoked at any time within the discretion of the Secretary. Agricultural and grazing leases dealt with in Sec. 173.17 shall be subject to cancellation as provided for in the respective parts 162 and 166 of this chapter, and the conditions of the instruments executed pursuant thereto.