ABA and Early Intervention Before Age 3
Skip the insurance maze. Part C gives your toddler free or low-cost early intervention, no diagnosis needed.
Why Part C Beats Insurance for Toddlers
If your toddler shows signs of autism, the fastest door to services is your state's Part C program. Part C is the federal early intervention system for children from birth to age 3. Every state runs one, and it is free or on a sliding scale based on income. You do not need a diagnosis to ask for an evaluation.
Insurance-funded ABA often requires a formal autism diagnosis, a referral, prior authorization, and a fight over medical necessity. That process can take months. Part C skips most of that. You call, they evaluate, and if your child qualifies, services start. For many parents, Part C is the difference between waiting and acting now.
- No diagnosis required to request an evaluation
- Free or low-cost, regardless of income
- Services start as early as the evaluation shows need
The Evaluation Is Free and Fast
Part C must complete your child's evaluation within 45 days of your written referral. That is a federal timeline, so you are not at the mercy of a waiting list. The evaluation covers five areas: cognitive, physical, communication, social or emotional, and adaptive skills.
You can request the evaluation in writing even if you suspect a delay but have no diagnosis. In fact, you should. Write a short letter to your state's Part C contact, include your child's name and birth date, and say you want an evaluation for early intervention services. Send it by email and certified mail so you have proof of the date.
The evaluation team will observe your child, ask you questions, and run standardized tests. If your child qualifies, you get an IFSP within 45 days of the evaluation. If not, they will tell you why and often suggest other resources.
What the IFSP Covers
The Individualized Family Service Plan, or IFSP, is your roadmap. Unlike an IEP, it focuses on your whole family, not just your child. It lists your child's strengths and needs, your family's priorities, and the specific services your child will get.
Services can include developmental therapy, speech therapy, occupational therapy, and sometimes ABA-style interventions. The IFSP also names a service coordinator, one person who helps you schedule everything and find resources. You will review the IFSP every six months and update it as your child grows.
Part C services are provided in your home or in community settings like a daycare or park. That means you do not have to drive to a clinic. The provider comes to you, which makes it easier to fit therapy into your day.
How It Differs from Insurance-Funded ABA
Insurance-funded ABA is usually delivered one-on-one by a board-certified behavior analyst (BCBA) in a clinic or home, with 10 to 40 hours per week of direct therapy. Part C is typically less intensive, often 1 to 3 hours per week, and may be delivered by a developmental therapist or special instructor rather than a BCBA.
Part C also covers parent training. A provider will show you how to use strategies during daily routines like meals, baths, and play. That is a big deal because you are the person your child spends the most time with. Insurance-funded ABA may include parent training too, but it is often billed separately and can be limited.
The other difference is cost. Insurance ABA can run $60 to $150 per hour, and even with coverage, you may face copays and deductibles. Part C is free or sliding scale, so you can start without worrying about a bill. You can use both: Part C for early intervention and insurance for more intensive ABA if your child needs it.
The Transition to Part B at Age 3
Part C ends on your child's third birthday. That is a hard stop. But the law requires a transition plan, and you start planning at least 90 days before your child turns 3. Your service coordinator will help you move to Part B, which is the school-based special education system.
Part B is different. It is not free in the same way; it is funded through your local school district, and services are provided in a school setting or sometimes at home. You will need an IEP, which requires a new evaluation. The school district must evaluate your child within 60 days of your written consent.
To make the transition smooth, start early. Attend the transition meeting, ask for a written copy of the plan, and make sure your child's records are shared with the school district. If your child is already getting Part C services, the school district must consider those results, but they will still do their own evaluation.
Do not wait until the week before the third birthday. The school district has timelines, but they can be delayed if you do not give consent in writing. Ask your service coordinator for the transition timeline at your first IFSP meeting, and put the date on your calendar.
How to Request the Evaluation in Writing
Here is a template you can adapt. Write a letter to your state's Part C lead agency, which is often the Department of Health or Education. Include your child's name, birth date, and your contact information. Say: 'I am requesting a Part C evaluation for my child due to concerns about [communication, social skills, behavior]. Please schedule an evaluation within the required 45-day timeline.'
Send it by email and certified mail. Keep a copy for your records. The 45-day clock starts when the state receives your written request, so do not rely on a phone call. If you are not sure who to contact, call your local school district or visit the Early Childhood Technical Assistance Center website for a state-by-state list.
If the state denies your request or delays, you have the right to dispute it. Each state has a complaint process, and you can also request a due process hearing. But in most cases, a written request gets you an evaluation quickly. You are not asking for a favor; you are asking for a right.