Busing Storm Evacuees

I just heard Ray Nagin and the new FEMA Director state that there will be buses provided for evacuees prior to the landfall of another big storm.

The New Orleans area school buses that were available pre-Katrina got flooded because no one showed up to drive them in time.

Apparently, like the decisions to evacuate, that is a decision that will be left up to the locals in each affected area.

Has a decision been made in the Gulf area as to who will drive them the next time and how will that be enforced?