Child development

How Early Intervention Works in Connecticut

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Birth to Three is Connecticut's version of the federal Part C mandate for infants and toddlers with developmental delays or diagnosed conditions. This guide covers how to make a referral, Connecticut's two-track eligibility standard, how the state's sliding fee scale is calculated, why private insurers are required to help pay for services, what an IFSP can include, and how the move to Part B preschool special education works at age three.

Last updated: July 2026

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Referral to Connecticut's Birth to Three System

Connecticut delivers Part C early intervention through Birth to Three, overseen statewide by the Office of Early Childhood, the state's designated Part C lead agency 1. A parent, relative, child-care provider, or physician can make a referral, and a family does not need a pediatrician's note or a completed diagnosis to request an evaluation 2.

Once Birth to Three receives a referral, the same federal 45-day clock applies as it does everywhere else: a multidisciplinary evaluation, and for an eligible child, an initial meeting to write the Individualized Family Service Plan 3. A service coordinator is assigned once the referral is logged and stays with the family through evaluation, eligibility, and any changes to services later on.

Who Qualifies: A Standardized Test or a Diagnosed Condition

Connecticut recognizes two paths to eligibility for a child under three. The first is a significant developmental delay, measured on a standardized test, in one or more areas such as communication, motor skills, cognition, social-emotional development, or adaptive behavior. The second is a diagnosed medical condition with a high probability of causing a developmental delay, which can qualify a child even before a delay is measurable.

A family unsure which path applies doesn't need to resolve that question before referring; Birth to Three's evaluation team determines which standard a child meets during the evaluation itself, not before it. The evaluation typically involves more than one discipline, often pairing a developmental specialist with a speech-language pathologist, physical therapist, or occupational therapist depending on the concerns the family raises when they refer.

How Connecticut's Sliding Fee Scale Works

Connecticut is one of the few states in this group that charges some families a monthly fee for Birth to Three services, set on a sliding scale. The calculation uses the family's adjusted gross annual income, family size, and whether the family consents to have private insurance billed for services. A family with a lower income, or a larger household relative to its income, generally owes less or nothing.

That fee only covers part of the program's cost regardless of what a family pays: state funds cover roughly half of Birth to Three's budget, and Medicaid covers a large share of the rest, so a family's fee is never the primary source of funding for its child's services. Because the calculation depends on income and family size, a family's monthly fee can change from one annual review to the next, and it is worth asking Birth to Three to recalculate if a household's circumstances shift, such as a job loss or a new child.

Why Connecticut Requires Insurers to Help Pay

Connecticut law requires health insurance carriers licensed in the state to contribute toward the cost of a covered child's Birth to Three services, and, notably, that contribution cannot draw down the annual or lifetime benefit caps on the family's policy. In practice, that means using insurance to help pay for early intervention should not leave a family with less coverage remaining for the rest of the year, or for the rest of the child's life on that plan.

Families are usually asked to consent to insurance billing as part of enrollment, and that consent is one of the factors used to calculate the sliding fee, alongside income and family size. A family that would rather not have insurance billed can decline, though doing so may change where the family lands on the fee scale, since consenting to insurance billing is one of the variables in the calculation. Families with questions about how a specific insurance plan interacts with this rule can ask Birth to Three's service coordinator to walk through the calculation before enrollment is finalized.

What an IFSP in Connecticut Can Include

An IFSP built under Part C can authorize physical therapy, occupational therapy, speech-language therapy, developmental services, service coordination, and family training, matched to the priorities a family and the evaluation team set together 3. Speech-language pathologists frequently anchor the team when a family's central concern is a child's communication, since they are trained to screen for and treat the social-communication delays that often accompany, or later prove to be, autism 4.

Connecticut contracts with a network of local agencies to deliver these services directly to families, usually at home or in the child-care setting a family already uses, consistent with Part C's design to fit services into a family's everyday routine 5. Many providers coach the parent or caregiver directly, building a specific goal into an everyday moment like mealtime or playtime rather than treating therapy as something that happens only during a scheduled visit.

From Birth to Three to Preschool: Connecticut's Part B Transition

Birth to Three services end at a child's third birthday. Ahead of that date, the IFSP team holds a transition conference to plan the move to Part B preschool special education, delivered through local school districts, where eligibility is assessed again under separate criteria rather than continued automatically 6. Reading about how an IFSP becomes an IEP before that meeting can make the transition conference easier to follow. Bringing the current IFSP and recent evaluation reports to that meeting generally helps the school district's team move faster, since they can build on Birth to Three's existing paperwork instead of starting over.

A family relocating should know that Part C eligibility does not transfer automatically between states. A family that used early intervention in Virginia, early intervention in Washington, early intervention in Alaska, early intervention in Arizona, or early intervention in Arkansas and then moves to Connecticut will need a new referral to Birth to Three, since each state sets its own eligibility rule, fee structure, and lead agency under IDEA Part C 1.

Common questions

No. Eligibility rests on a significant developmental delay measured on a standardized test or a diagnosed medical condition likely to cause one, not on an autism diagnosis specifically. A toddler with communication or social delays can be referred and evaluated well before, or separately from, a formal autism evaluation.

The fee is set on a sliding scale using the family's adjusted gross annual income, family size, and whether the family consents to have private insurance billed. A lower-income or larger family generally owes less or nothing, and the fee never covers the full cost of services.

Connecticut law requires insurers to contribute toward Birth to Three services without depleting the annual or lifetime benefit caps on a family's policy. That protection is specific to Connecticut and is one reason the state asks families to consent to insurance billing during enrollment.

Yes. A parent can contact Birth to Three directly and request an evaluation without a pediatrician's note or a completed diagnosis. Relatives, child-care providers, and physicians can also make a referral with the family's knowledge, but none of them is required for a parent to start.

Birth to Three ends at the third birthday. The IFSP team holds a transition conference beforehand to plan the move to Part B preschool special education through the local school district, where eligibility is evaluated again under different criteria than Birth to Three used.

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When a developmental concern shouldn't wait on a program timeline

  • —Loss of previously gained words, gestures, or social responses at any age
  • —No evaluation scheduled well beyond the 45-day window after Birth to Three logs the referral
  • —A child not yet referred by around 30 months, since planning the move to Part B preschool takes additional lead time

This article explains how Connecticut's public early intervention system works. It is general education, not medical or legal advice, and cannot determine whether a specific child is eligible.

References

  1. 1.Early Childhood Technical Assistance Center (federally funded) (2024). Part C of IDEA. ECTA Center. link ✓That each state designates its own Part C lead agency responsible for the statewide early-intervention system, applied to Connecticut's Office of Early Childhood.
  2. 2.Center for Parent Information and Resources (OSEP-funded) (2023). Part C of IDEA: Early Intervention for Babies and Toddlers. Center for Parent Information and Resources. link ✓That a family can refer its own child for a Part C evaluation directly, without a professional initiating the referral.
  3. 3.U.S. Department of Education, Office of Special Education Programs (2024). Part 303 (Part C) — Early Intervention Program For Infants And Toddlers With Disabilities. IDEA — sites.ed.gov/idea. link ✓The federal regulatory requirement of a timely evaluation and IFSP after referral, and what early intervention services under an IFSP can include.
  4. 4.American Speech-Language-Hearing Association (2024). Autism (Practice Portal). ASHA Practice Portal — Clinical Topics. link ✓The role of speech-language pathologists in screening, assessing, and treating social communication and language delays in young children.
  5. 5.U.S. Department of Education (2024). IDEA Early Intervention Program for Infants and Toddlers with Disabilities (Part C). U.S. Department of Education. link ✓That IDEA Part C provides early intervention services to children birth through age 2 with disabilities or developmental delay and their families, delivered in natural environments.
  6. 6.U.S. Department of Education, Office of Special Education Programs (2024). IDEA Part C: Early Learning and Early Childhood. IDEA — sites.ed.gov/idea. link ✓The transition from Part C (birth-3) services toward Part B preschool special education at age 3.

6 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — every citation independently verified. Editorial policy

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