Which publication is known as the Correspondence Manual?

The Correspondence Manual is officially designated as SECNAVINST 5216.5C. This publication provides guidance on how to prepare and handle correspondence within the Department of the Navy. It covers various aspects, including standard formats, procedures, and protocols for written communications. This ensures that all correspondence is professional, consistent, and adheres to established standards.

The other publications listed serve different functions, with NAVSUP P-409 focusing on provisions and supply support, NAVSUP P-484 detailing procedures for supply and logistics, and NAVSO P-3013-2 relating to administrative policies. Each of these publications addresses specific areas of Navy operations but does not pertain to the formal guidelines for correspondence specifically outlined in SECNAVINST 5216.5C.