Which routing must be issued?

• A. Standard route text
• B. Verbal instructions only
• C. Embedded Route Text (ERT) routing
• D. No routing required

Answer: (C)

Clear, unambiguous route transmission is essential for automation and coordination between controllers and pilots. Embedded Route Text routing provides a precise, machine-readable route that is actually embedded into the flight plan or clearance, so the ERAM system and all involved personnel share the exact path to follow. This reduces the chance of misinterpretation that can happen with spoken wording or with general, non-structured route descriptions.

With Embedded Route Text, the route details—waypoints, transitions, and sequencing—are explicit and consistently formatted, which supports automated validation, conflict detection, and smooth handoffs. Verbal instructions alone can be misheard or forgotten, and standard route text, while helpful, may not be processed reliably by automation if it isn’t embedded in a standardized, parseable form. No routing would leave the system without a defined path, increasing ambiguity and risk.

So, the routing must be issued as Embedded Route Text routing to ensure exact, auditable, and automatable guidance that aligns human and system actions.