CFR > Title 15 - Commerce and Foreign Trade > SUBTITLE B—Regulations Relating to Commerce and Foreign Trade > CHAPTER II—NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE (parts 200 to 297) > SUBCHAPTER F—REGULATIONS GOVERNING TRAFFIC AND CONDUCT (parts 265 to 265) > 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 > SUBPART C—Buildings and Grounds (§265.31 to §265.43) > 265.39—Weapons and explosives.

265.39—Weapons and explosives.

Except in connection with the conduct of official business on the site, no person other than uniformed guards specifically authorized, or other Federal, State, or local law enforcement officials so authorized, shall carry, transport, or otherwise possess on the site, firearms whether loaded or not, other dangerous or deadly weapons or materials, or explosives, either openly or concealed, without the written permission of the Director or his designee.