You watch other babies rolling over, saying words, making eye contact in ways your child hasn't yet. Your pediatrician says it's probably nothing. Give it a few more months.

What most parents don't know is that while they wait, a federal program designed for exactly this moment is available to them: free, nationwide, and accessible without a doctor's referral.

What Part C of IDEA Covers

Part C of the Individuals with Disabilities Education Act (IDEA) is the federal law guaranteeing early intervention services to children from birth through age 2. When a child turns 3, Part C ends and Part B takes over for preschool-age children.

Under Part C, every state operates its own early intervention program. The federal government sets the requirements; each state administers its program under a different name. In New York it's the Early Intervention Program. In California it's California Early Start. In Texas it's Early Childhood Intervention (ECI). The name changes, the structure does not.

Who Qualifies

Many parents hesitate to call because they aren't sure their child's delays are significant enough to qualify. The eligibility standard was designed for exactly that uncertainty.

A child qualifies if they have a developmental delay in any of five areas: physical development, cognitive development, communication, social-emotional development, or adaptive development. These span motor skills and mobility, thinking and problem-solving, speaking and understanding language, relating to others and emotional regulation, and self-care skills like eating and dressing.

A child also qualifies if they have a diagnosed condition that carries a high probability of causing developmental delay. Down syndrome, cerebral palsy, and vision or hearing impairment are common examples. In those cases, no measured delay is required; the diagnosis itself establishes eligibility.

Each state sets its own thresholds for "developmental delay," most requiring a score significantly below age norms, often between 25 and 33 percent. Some states use broader criteria. The evaluation team determines whether your child meets your state's specific standard, which is one more reason to start the process rather than waiting for certainty on your own.

What Services Are Covered

Once a child qualifies, services are provided at no cost to the family. Coverage includes speech-language therapy, occupational therapy, physical therapy, special instruction, audiology services, vision services, family training and counseling, service coordination, and assistive technology.

Services are delivered in natural environments, meaning the places where children the same age normally live and learn: home, daycare, a grandparent's house. Therapists work where daily life happens, and they spend meaningful time teaching parents and caregivers to embed developmental strategies into everyday routines. Research on early intervention outcomes shows consistently that the frequency of parent-implemented practice between sessions shapes how children progress. The therapist isn't there every day. You are.

The Individualized Family Service Plan (IFSP) documents your child's goals, the services they'll receive, how often, and where. Unlike the IEP used for school-age children, the IFSP is explicitly family-centered. It includes goals for the family as well as the child, because the people who know your child's daily rhythms and needs are the most powerful part of the intervention.

How to Request an Evaluation

Parents can call their state's early intervention program directly, without a pediatrician referral or prior diagnosis. The Parent Center Hub maintains a state-by-state directory with contact information for every program. From the date of referral, federal law requires an evaluation and eligibility determination within 45 days.

The evaluation is free. A team of professionals, which may include a speech-language pathologist, occupational therapist, physical therapist, and developmental specialist, evaluates your child across all five developmental areas. You provide a developmental history and participate actively throughout. If your child qualifies, the team develops the IFSP within that same 45-day window.

Your Rights as a Parent

Your rights in this process are substantial and begin before any professional sets foot in your home.

You must provide written consent before any evaluation, before any service begins, and before any changes to the IFSP. You have the right to review all records, request an independent evaluation if you disagree with the findings, participate in all IFSP meetings, and dispute decisions through mediation or a formal complaint process.

Early intervention services are a federal entitlement, funded through IDEA, available in every state regardless of income.

When Your Child Turns 3

Part C ends on your child's third birthday, and the transition catches many families off guard. Transition planning begins 90 days before that date, which gives families time to prepare if they know it's coming.

At 3, children move to Part B of IDEA, which governs preschool special education. The eligibility criteria shift: Part B requires that the disability have an educational impact, not just a developmental delay. Some children who qualified for Part C will not qualify for Part B, and families need time to understand their options before the services they depend on end.

If your child is under 3 and you have concerns, you don't need a diagnosis or a doctor's note before you call. Most families who start the process are right where you are: watching, wondering, and not yet certain. The evaluation answers that question. Find your state's program and make the call. The process is free, federal law gives you 45 days for a decision, and services begin from where your child is, not where they're expected to be.