[Code of Federal Regulations] [Title 50, Volume 5] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 50CFR27.52] [Page 162] TITLE 50--WILDLIFE AND FISHERIES CHAPTER I--UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR--(Continued) PART 27_PROHIBITED ACTS--Table of Contents Subpart E_Disturbing Violations: Against Plants and Animals Sec. 27.52 Introduction of plants and animals. Plants and animals or their parts taken elsewhere shall not be introduced, liberated, or placed on any national wildlife refuge except as authorized.