Prior to the last 3 Minutes of either half, after a Replay Review, the clock will start on the Referee's ready for play signal, with a full 20 second clock.
In the last 3 minutes of each half, the normal special timing rules will apply. The clock would start at the prescribed time depending on the previous play, including the result of a challenge overturning a ruling on the field:
e.g. If ball was carried out of bounds — on the snap
If replay results in pass now ruled incomplete — on the snap
If replay results in pass now ruled completed and downed in field of play then clock would start on Referee's ready for play signal.
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Content compiled and entered by Glen Johnson and Andre Proulx
The CFL Official Rule Book is published annually by the Canadian Football League. Any inquiries regarding the CFL Official Playing Rules may be directed to Glen Johnson, Vice-President, Officiating @ firstname.lastname@example.org.