Which entity is responsible for assigning TNs for C2IUs?

The correct answer highlights the role of TDL Planners in assigning Task Numbers (TNs) for Command and Control Information Units (C2IUs). TDL Planners are responsible for the overall configuration and management of Tactical Data Link (TDL) systems, ensuring that data is organized and correctly assigned within the network. This includes the allocation of TNs, which are essential for identifying and categorizing information being exchanged among various entities operating within the TDL environment.

By assigning TNs, TDL Planners facilitate effective communication, coordination, and information sharing among units, which is critical for achieving operational objectives in a joint operational environment. The responsibility of TDL Planners emphasizes the need for organized data management and strategic planning in joint operations, ensuring that C2IUs function efficiently within the broader operational framework.