American Football Rules IFAF Approved Ruling 3-3-2:VIII-IX

VIII. Third and five at the B-15 late in the fourth quarter, with Team A trailing 10-7. Quarterback A11 rolls out and is at the B-12 when he throws a forward pass that is incomplete. When the
ball is dead the game clock shows 0:13. Team B accepts the penalty for the illegal forward pass. RULING: Fourth and seven at the B-17. Team B has the option for a 10-second runoff. Assuming that Team B accepts the runoff, the game clock is set at 0:03 and starts on the referee’s signal. [Cited by 3-3-2-f, 3-4-5-b-Note]
IX. Second and seven at the A-5 late in the second quarter. Quarterback A11 drops back to pass and is scrambling in his end zone as he tries to find an open receiver. About to be tackled
in the end zone, A11 throws the ball forward to the ground in an area where there is no eligible receiver. The referee throws a flag for intentional grounding. When the ball is dead the game clock shows 0:18. Team B accepts the penalty. RULING: The penalty results in a safety, and Team A will free kick at the A-20. Team B has the option for a
10-second runoff. If Team B accepts the runoff, the game clock is set at 0:08 and starts on the referee’s signal. If Team B declines the runoff, the game clock remains at 0:18 and starts when the kicked ball is legally touched in the field of play. [Cited by 3-3-2-f, 3-4-5-b- Note]