[Code of Federal Regulations] [Title 49, Volume 6] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR523.4] [Page 86] TITLE 49--TRANSPORTATION CHAPTER V--NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 523_VEHICLE CLASSIFICATION--Table of Contents Sec. 523.4 Passenger automobile. A passenger automobile is any automobile (other than an automobile capable of off-highway operation) manufactured primarily for use in the transportation of not more than 10 individuals. (Sec. 301, Pub. L. 94-163, 80 Stat. 901 (15 U.S.C. 2001)) [42 FR 38362, July 28, 1977]