The fact that the Postal Service asked for an extension is significant in that it shows that the case is not headed for the DC Circuit. That has seemed like a very real possibility since May 5th, when the Postal Service filed a motion asking the Commission to withdraw its order initiating the inquiry. The motion argued that the Commission lacked the legal authority to initiate such an inquiry, and it made a not-so-veiled threat to take the matter to court.
On June 21, the Commission denied the motion, affirmed its authority to conduct the inquiry, and issued its first information request. On June 27, the Postal Service filed a motion asking for a three-week extension. It’s not clear why the Postal Service backed down on bringing a lawsuit.