[Code of Federal Regulations] [Title 7, Volume 6] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 7CFR500.21] [Page 323] TITLE 7--AGRICULTURE CHAPTER V--AGRICULTURAL RESEARCH SERVICE, DEPARTMENT OF AGRICULTURE PART 500--NATIONAL ARBORETUM--Table of Contents Subpart B--Fee Schedule for Certain Uses of National Arboretum Facilities and Grounds Sec. 500.21 Fee schedule for tram. The USNA provides tours of the USNA grounds in a 48-passenger tram (accommodating 2 wheelchairs) for a fee as follows: $3.00 per adult; $2.00 per senior citizen or Friend of the National Arboretum; $1.00 per child ages 4 through 16. Children under 4 sharing a seat with an adult will not be charged.