[Code of Federal Regulations] [Title 45, Volume 3] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 45CFR670.6] [Page 214-215] TITLE 45--PUBLIC WELFARE CHAPTER VI--NATIONAL SCIENCE FOUNDATION PART 670_CONSERVATION OF ANTARCTIC ANIMALS AND PLANTS--Table of Contents Subpart B_Prohibited Acts, Exceptions Sec. 670.6 Prior possession exception. (a) Exception. Section 670.4 shall not apply to: (1) any native mammal, bird, or plant which is held in captivity on or before October 28, 1978; or (2) Any offspring of such mammal, bird, or plant. (b) Presumption. With respect to any prohibited act set forth in Sec. 670.4 which occurs after April 29, 1979, the Act creates a rebuttable presumption that the native mammal, native bird, or native plant involved in such act was not held [[Page 215]] in captivity on or before October 28, 1978, or was not an offspring referred to in paragraph (a) of this section.