Cal. Code Regs. tit. 4, § 1730
(d) A horse falls before the word “Go” is given.
There shall be no recall after the word “Go” has been given and any horse, regardless of his position or an accident, shall be deemed a starter from the time he entered into the starter's control unless dismissed by the starter.
The starter may sound a recall only for the following reasons:
1. Amendment filed 6-25-76; effective thirtieth day thereafter (Register 76, No. 26).