Changes In Facilities
Order Number
DOT 1100.17B
Originating Office
OST - M (Administration)
Order Effective Date
12/24/1987
Last updated: Wednesday, December 4, 2019
An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.