rule question

[kaznj]

You are shooting a new rack. You miss the shot and scratch. The break ball end up behind the rack.
I have ball in hand in the kitchen. Do I have to shoot past the head string, or can I back scratch and put the cue ball on the end rail.
I cannot find this rule in the BCA rule book.

 

[Bob Jewett]

You are shooting a new rack. You miss the shot and scratch. The break ball end up behind the rack.
I have ball in hand in the kitchen. Do I have to shoot past the head string, or can I back scratch and put the cue ball on the end rail.
I cannot find this rule in the BCA rule book.

Here is the rule from the WPA rules:

6.11 Bad Play from Behind the Head String
When the cue ball is in hand behind the head string, and the first ball the cue ball contacts is also behind the head string, the shot is a foul unless the cue ball crosses the head string before that contact. If such a shot is intentional, it is unsportsmanlike conduct.
The cue ball must either cross the head string or contact a ball in front of or on the head string or the shot is a foul, and the cue ball is in hand for the following player according to the rules of the specific game.​

The two standard ways to play safe in the situation you describe are to play two cushions out of a foot corner as a lag to leave the cue ball frozen to the middle of the head rail or to play the cue ball nearly parallel to the head string to hit the cushion just outside the head string and spin back inside the kitchen with english to also come to rest at the center of the head rail.