What does it mean to issue a "descend via" clearance?

What does it mean to issue a "descend via" clearance?

• A. Follow the published STAR/transition profile and descend accordingly, with altitude restrictions as published.
• B. Descend to the last assigned altitude immediately and maintain until further clearance.
• C. Climb to the requested altitude and maintain until established on final approach.
• D. Descend as requested by the pilot.

Answer: (A)

Descend via means you may follow the published vertical path for the route (such as a SID/STAR/transition) and descend through the step-down altitude restrictions shown on that procedure. You’re allowed to descend along those published altitudes, crossing fixes at the specified levels and continuing down to the approach path unless ATC gives you different instructions. This is why the correct choice fits best: it explicitly ties the clearance to the published profile and its altitude restrictions, guiding your descent in the correct sequence. It’s not simply dropping to the last assigned altitude all at once, nor is it about climbing, nor about descending solely at the pilot’s request—the controller is authorizing descent along the procedure with the required altitude constraints.

Descend via means you may follow the published vertical path for the route (such as a SID/STAR/transition) and descend through the step-down altitude restrictions shown on that procedure. You’re allowed to descend along those published altitudes, crossing fixes at the specified levels and continuing down to the approach path unless ATC gives you different instructions. This is why the correct choice fits best: it explicitly ties the clearance to the published profile and its altitude restrictions, guiding your descent in the correct sequence. It’s not simply dropping to the last assigned altitude all at once, nor is it about climbing, nor about descending solely at the pilot’s request—the controller is authorizing descent along the procedure with the required altitude constraints.