B.H.
Not sure about Georgia, but in California if you request testing in writing they have a set number of days that it must be completed within.
RTI is a buzz word in education. It is all about how your child is given intervention to boost low or a lack of academic skills and his/her response to that individual or small group attention. It's not an individualized education program (IEP) and they aren't required to have a planning meeting with you. In many CA districts, intervention is a daily thing in classrooms, a set period of day. The groups change with students moving in and out as the focus changes and students gain mastery of academic skills.
If you have a concern that your child has a learning disability, request testing in writing.