How should adverse weather or one-off events be handled within Track Warrant Control?

• A. The crew determines new instructions and informs the dispatcher
• B. The dispatcher may issue temporary amendments or restrictions
• C. The dispatcher may issue temporary amendments or restrictions; the crew must follow updated instructions and communicate accordingly.
• D. Warrant revisions are not allowed during adverse conditions

Answer: (C)

Adverse conditions require the authority to adapt track movements to the latest on‑the‑ground status. In Track Warrant Control, the dispatcher can issue temporary amendments or restrictions to reflect weather impacts or one‑off events. The crew must follow these updated instructions and communicate back to the dispatcher to confirm receipt and understanding, and to report any conflicts or limitations. This keeps movements coordinated and safe despite changing conditions. The crew cannot unilaterally create new instructions, and a blanket rule that revisions aren’t allowed is incorrect; revisions are indeed permissible to maintain safe operations.