That is different for our school of choice. The granting school doesn't have to give bus transportation to the school of choice kids out of district. I have never had a problem though, they do pick the kids up even though we a soc. I will have to check that district to see if its a michigan law or goes by each school.
try looking it up in the education code first.
when i found out about the law regarding the bus passing another school i immediatly called the district and was surprised that they had never heard of it. apparantly very few people at all know about it-the superintendant of our district had to talk to 3 different people with the state department of education before he found one that knew about it let alone had ever heard of anyone acting on it (apparantly we were the first family on our side of the state to ever inquire about it-and one of very few families that has ever taken advantage of it in the entire state, though it's apparantly been in the education code for quite awhile).