Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

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.

U.S. Department of Transportation Directives System

Order Number
DOT 1320.16D
Originating Office
OST-C (Counsel)
Order Effective Date
01/19/2021
Document
OST-C-201207-003_DOT_DIRECTIVES SYSTEM.pdf
Last updated: Thursday, June 23, 2022