scope:

This instruction applies to in-service and new ships and selected craft, and encompasses all onboard equipment, whether mission critical or not, that contributes to the overall ship signature while the ship is in a heightened state of readiness for potential conflict. Comprehensive signature control for future ships and craft must consider the impact on signatures during evolutions involving not only tactical, navigation, and other mission-critical systems, but also involving non-critical items such as boats, replenishment stations, non-tactical communication equipment, quarterdeck equipment, and temporary topside equipment, throughout the life of the ship.