I started by looking up my state's and school district's policies on subject acceleration. For us, my DD had to be identified as gifted first before we could even begin the process of applying and testing for subject acceleration. Knowing the policies ahead of time can be helpful so you know what to ask for. Some school and guidance counselors are very supportive of acceleration, but others are not; as a result, it's helpful to know a little about how the process works before going in.