[Code of Federal Regulations] [Title 36, Volume 3] [Revised as of July 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 36CFR520.12] [Page 56] TITLE 36--PARKS, FORESTS, AND PUBLIC PROPERTY CHAPTER V--SMITHSONIAN INSTITUTION PART 520--RULES AND REGULATIONS GOVERNING THE BUILDINGS AND GROUNDS OF THE NATIONAL ZOOLOGICAL PARK OF THE SMITHSONIAN INSTITUTION--Table of Contents Sec. 520.12 Photographs for news, advertising, or commercial purposes. No photographs for advertising or any other commercial purpose may be taken on the premises unless officially authorized.