seastar,
Dixie Softball Regulations:
III. C.
A player's name shall appear on no more than one (1) season team roster in Dixie Softball play.
However, there is no clear punishment for violating this regulation. First, I would contact the district director, then the state director if not satisfied with the results.
V and VI. Deal with Boundaries and Player Selection. There is a penalty for violating portions of these regulations. I would hate for the girls to be punished, the coach should be reprimanded for his actions.
If you don't know your district director, go to
http://www.dixie.org to look the director up.