What is the correct order of phraseology for hold for release instructions?

The correct order for hold for release instructions is crucial for ensuring that pilots understand the situation regarding their departure and any potential delays. The phraseology that includes clearance information followed by a hold for release instruction, and then the expected departure delay in time, provides a complete and clear directive to the pilot.

By structuring the instruction this way, the pilot first receives the necessary clearance information, which is vital for identifying their flight's context. Following this, the instruction to hold for release explicitly indicates that the aircraft is not yet cleared for takeoff but will be so once conditions allow. Finally, providing the expected departure delay in hours and/or minutes offers the pilot a tangible understanding of how long they might wait, aiding in better flight management and planning.

This comprehensive order effectively communicates all relevant information in a single directive, enhancing operational efficiency and safety. Other options may lack either the essential context or the clarity required for effective communication with the flight crew.