Originally Posted by WhiskeyDelta

Hugely mistaken concept about APDs. They are not mandatory blackout dates. The PWA simply says the company can deny an APD regardless of reserve coverage; not that that it will be denied automatically.

I successfully used mine for a Dec 25-26 trip last year. It processed and was approved during the first PCS run for that month.

Also of note, APDs are processed before regular PDs.