The principle means for disseminating TTP to the Navy is through NWPs. NWPs disseminate information on a broad scale from top level doctrine to operational level tactics and eventually down to procedural NWPs which discuss the operation of specific systems. The target audience is commanders of units to which the tactics apply, and their immediate superiors in command. Techniques describe employment of specific components and systems of ships or aircraft. They are generally written for watch supervisors and operators.
Procedures are instructions, often detailed, for operation of specific systems and equipment.
Procedures are often more rigid and directive than other levels of tactical guidance, due to the technical limits of weapons, ships, aircraft and other equipment. Procedures are written for equipment or system operators. They are intended to allow operational commanders and warfare centers of excellence to publish new TTP for evaluation and validation by operating forces, either in exercises or in operations. They are issued for a specific period of time that will allow validation of their substance, normally less than 24 months.