Early Intervention: the complete US guide
Free, federally-funded developmental services for kids under 3. How to access, what to expect, what services are covered, and why earlier matters than most parents realize.
Development · Services
TL;DR Early Intervention (EI) is free, federally-funded developmental services for kids under 3 with delays. You self-refer (no pediatrician needed). Evaluation within 45 days, services within 30 of qualifying. Speech, OT, PT, developmental therapy, parent training all covered. Most US kids who get EI before age 3 catch up or substantially close gaps by school age. The system is under-used because parents don't know it exists.
Most US parents have never heard of Early Intervention until they need it. It's federally mandated under IDEA Part C (Individuals with Disabilities Education Act). Every US state runs a program. Services are free for the vast majority of families. And the impact for kids who qualify is significant.
Who qualifies
Kids under 36 months with:
- A 25-33 percent delay in one or more developmental domains (motor, language, cognitive, social-emotional, adaptive)
- OR a diagnosed condition that's likely to result in delay (cerebral palsy, Down syndrome, autism, hearing impairment, etc.)
- OR established risk factors in some states (prematurity, NICU stay, family history) — varies
The percentage delay is determined by the evaluation. You don't need a diagnosis to qualify — just measured delay.
How to access EI
- Search "Early Intervention" + your state. Names vary: BabyNet (SC), Birth-to-Three (CT), Help Me Grow (OH), etc. The state agency website has a phone number.
- Call. Give name, child's age, and a brief description of your concern. No documentation needed.
- Evaluation is scheduled within 45 days. Federally mandated timeline.
- Multi-disciplinary evaluation at your home. A developmental specialist, a speech therapist, often an OT or PT. 1-2 hours.
- Results within 1-2 weeks. If your child qualifies, an Individualized Family Service Plan (IFSP) is written.
- Services start within 30 days of the IFSP. Typically weekly or bi-weekly at your home.
Total: concerns to services in roughly 8-10 weeks. Faster than most pediatric specialist referrals.
What services are covered
- Speech-language therapy — for expressive or receptive language delays
- Occupational therapy — fine motor, sensory, feeding, self-care
- Physical therapy — gross motor, mobility
- Developmental therapy — cognitive, play, learning skills
- Special instruction — for parents, on supporting the child's development
- Audiology — hearing evaluation and management
- Vision services — visual processing concerns
- Social work, nutrition, psychology — as relevant to the child's situation
- Service coordination — one person who manages your IFSP across all providers
Document delays before the evaluation
The milestone tracker creates a clear record of what your child has and hasn't done — useful documentation for the EI evaluation.
Open the milestone tracker →The cost question
Services are free for most families. Specifics:
- Evaluations are always free regardless of family income.
- Services are free in most states regardless of income.
- Some states use a sliding fee scale for higher-income families. Even at the highest income, fees are typically capped well below private-market rates.
- Your private insurance may be billed as a secondary payer in some states. This usually doesn't affect your costs but does involve some paperwork.
What services look like in practice
EI is "home-based" by federal law. A therapist comes to your home (or sometimes daycare) for sessions. The model is coaching-oriented:
- The therapist works WITH the child for 30-45 minutes
- The therapist coaches the PARENT on what to do in everyday moments
- The expectation is that you practice the strategies between sessions
- Sessions are weekly or bi-weekly depending on the IFSP
This is different from older models where the therapist worked with the child in isolation. Modern EI emphasizes parent coaching because parents have far more contact time with the child than any therapist ever could.
What happens at age 3
EI ends at the third birthday. Transition planning starts around 30 months. Options at age 3:
- Preschool special education through your local school district (IDEA Part B). Free, includes therapy services. Different evaluation process — district-administered.
- Private therapy using insurance.
- Aging out if the child has caught up.
The transition is managed by your EI service coordinator. They'll help you understand options and connect with the school district.
The "but my pediatrician said wait and see"
Common scenario. Modern pediatric guidance is shifting away from "wait and see" toward "screen and refer when in doubt." If your pediatrician dismisses concerns and your gut says otherwise:
- Self-refer to EI without the pediatrician's blessing. The evaluation is free. If your child doesn't qualify, you owe nothing and learn something. If they do qualify, you've moved months earlier.
- Get a second opinion from a developmental pediatrician. Different specialty from general pediatrics.
Effectiveness
Research consistently shows that kids who receive EI before age 3 have substantially better outcomes than kids who wait until preschool services. Effect sizes are largest for:
- Autism — earlier intervention strongly associated with better language and social outcomes
- Speech delays — most kids with EI catch up to peers by school age
- Motor delays — most kids with EI close the gap before kindergarten
- Premature-birth-related delays — EI is the standard of care
The brain's plasticity in the first 3 years is unique. Same intervention at 4-5 produces smaller effects.
Sources
- State Early Intervention Programs — Centers for Disease Control and Prevention, 2024
- IDEA Part C Regulations — US Department of Education, 2024
- Act Early Resources — Centers for Disease Control and Prevention, 2024
General guidance. Specific eligibility and services vary slightly by state.