Know and Understand Your Rights
IDEA, the Individuals with Disabilities in Education Act is the federal law that was enacted to address all issues related to the IEP. Like every law it is confusing to read and difficult to understand, but there are many resources out there to help you make sense of the confusion.
Specific timelines ensure that the development of an IEP moves from referral to providing services as quickly as possible. Be sure to ask about this timeframe and get a copy of your parents' rights when your child is referred. These guidelines (sometimes called procedural safeguards) outline your rights as a parent to control what happens to your child during each step of the process. You are entitled to a written invitation to the IEP meeting
The parents' rights also describe how you can proceed if you disagree with any part of the CER or the IEP — mediation and hearings both are options. You can get information about low-cost or free legal representation from the school district or, if your child is in Early Intervention (for kids ages 3 to 5), through that program. Many school districts offer mentoring programs for parents to collaborate with one another to answer common special education questions.
Attorneys and paid advocates familiar with the IEP process will provide representation if you need it. You also may invite anyone who knows or works with your child whose input you feel would be helpful to join the IEP team. You can even bring a close friend just for moral support.
http://kidshealth.org/parent/growth/learning/iep.html#a_Your_Legal_Rights