Can someone give me some assistance on what I'm sure is a silly question? I'm trying to figure out how to read the salary schedules for the local school districts in Orange County, CA. They all show vertical columns across the top showing BA, BA+15, BA+30, etc. I'm not sure where the credential fits in. Are the credential courses counted within the +15, +30 unit counts or is it assumed that you'll have a credential and the units are post credential units?