[Code of Federal Regulations] [Title 15, Volume 1] [Revised as of January 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 15CFR265.19] [Page 382] TITLE 15--COMMERCE AND FOREIGN TRADE CHAPTER II--NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE PART 265--REGULATIONS GOVERNING TRAFFIC AND CONDUCT ON THE GROUNDS OF THE NATIONAL INSTITUTE OF STANDARDS & TECHNOLOGY, GAITHERSBURG, MARYLAND, AND BOULDER AND FORT COLLINS, COLORADO--Table of Contents Subpart B--Traffic and Vehicular Regulations Sec. 265.19 Unattended vehicles. No person shall leave a motor vehicle unattended on the site with the engine running or a key in the ignition switch or the vehicle not effectively braked.