American Football Rules IFAF Approved Ruling 7-3-2:II

II. Late in either half with more than one minute remaining, A10 is unable to locate an open receiver. To conserve time, he throws a forward pass that is incomplete where there is no eligible Team A player. RULING: Illegal forward pass, intentional grounding. Penalty — Loss of down at the spot of the foul. The clock will start on the ready-for-play signal (Rule 3-3-2-e-14 and 3-4-3). [Cited by 3-3-2-e-14, 7-3-2-g, 7-3-2 Penalty]