Lengthy delays and children ending up on the wrong buses have been reported.
Wake County Schools Superintendent Tony Tata has acknowledged the problems, and said the district is working as fast as it can to iron out the kinks.
Tata blamed some of the problems on money. With state funding shrinking, the district has been forced to choose between classroom or transportation cuts.
Officials said they calculated they'd need more buses this year because of growth, but ended up taking 48 buses off the road.