Verified answer

It's simply the scan at local(Austin) delivery depot of the courier company, the last place to keep your parcel before it's on the truck and deliver to your location.

If no one response to the delivery at the location, the parcel will return to the depot, and you will have a note acknowledge pick up at the depot.

If you signed for the acceptance of the delivery, that will be the second last line on the tracking record.

Hope this help.

I’m going to assume that is a short technical word for “final destination check and sort for local delivery” a.k.a. departing mail system.