As of 2015, the Standard Navy Distribution List is a directory that provides the proper mailing addresses for all United States Navy commands. Produced at the Washington Navy Yard by the Office of the Assistant Vice Chief of Naval Operations, Shore and Fleet Organization Branch, the SNDL provides for the distribution of mail to the Chief of Naval Operations and the Secretary of the Navy, as well as providing a central distribution system for all Navy directives and correspondence.
The SNDL is updated on a monthly basis and is available free of charge to Navy personnel, government contractors and the general public. All Naval commands listed in the SNDL automatically receive a CD containing the updated version of the SNDL every quarter. The SNDL can also be accessed through the Secretary of the Navy/Chief of Naval Operations directives websites, where it is also updated quarterly.
The SNDL is separated into two parts. Part 1 is titled “Operating Forces of the Navy, Unified and Specified Commands, U.S. Elements of International Commands,” and it contains only the mailing addresses of activities that are specifically authorized by the Chief of Naval Operations, the Commandant of the Marine Corps, or a higher authority. Part 2, “Catalog of Naval Shore Activities,” is the U.S. Navy's official listing, which contains addresses of all shore activities of the Department of the Navy.