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 to be put into play, the thrower must establish a pivot at the spot of the disc.
The thrower should pick up the disc and place the pivot at the spot of the disc.
If the disc comes to rest on the playing field proper , a member of the team becoming offense must put the disc into play within ten seconds after it comes to rest. After ten seconds elapse, a defensive player within three meters of the disc may announce disc in, and then initiate and continue the stall count, but only if a defensive player has given audible warnings of ten and five seconds (the pre-stall).
The 70 x 40 yard box
If the disc comes to rest other than on the playing field proper, a member of the team becoming offense must put the disc into play within twenty seconds after it comes to rest.
If an offensive player unnecessarily delays putting the disc into play in violation of rule XIX.B, a defender within three meters of the spot the disc is to be put into play may issue a delay of game warning instead of calling a violation. If the behavior in violation of rule XIX.B is not immediately stopped, the marker may initiate and continue a stall count, regardless of the actions of the offense. In order to invoke this rule, after announcing delay of game, the marker must give the offense two seconds to react to the warning, and then announce disc in before initiating the stall count.