For the purposes of these Directives a fast bowler is defined as a bowler to whom a wicket keeper in the same age group would in normal circumstances stand back to take the ball.
Age groups are based on the age of the player at midnight on 31st August in the year preceding the current season.
Having completed a spell the bowler cannot bowl again, from either end, until the equivalent number of overs to the length of the spell have been bowled from the same end.
A bowler can change ends without ending his current spell providing that he bowls the next over that he legally can bowl from the other end.If this does not happen the spell is deemed to be concluded.
If play is interrupted, for any reason, for less than 40 minutes any spell in progress at the time of the interruption can be continued after the interruption up to the maximum number of overs per spell for the appropriate age group.If the spell is not continued after the interruption the bowler cannot bowl again, from either end, until the equivalent number of overs to the length of the spell before the interruption have been bowled from the same end.
If the interruption is of 40 minutes or more, whether scheduled or not, the bowl can commence the new spell immediately.
Once a bowler covered by these Directives has bowled in a match he cannot exceed the number of overs per day for his age group even if he subsequently bowls spin.