If the disc is on the ground, whether in- or out-of-bounds, any member of the team becoming offense may take possession of it.
If possession is gained at the spot where the disc is in play, the thrower must establish a pivot at the spot of the disc.
If an in-bounds disc comes to rest on the central zone, a member of the team becoming offense must pick up the disc and establish a pivot within ten seconds after it comes to rest.
The thrower should pick up the disc and place the pivot at the spot of the disc.
After ten seconds elapse, an observer will initiate and continue the stall count. (the pre-stall).
The 80 x 40 yard box
If the disc is out-of-bounds (10.E) or comes to rest in the end zone, a member of the team becoming offense must put the disc into play within twenty seconds after it comes to rest.