A practical parent's guide
Early intervention in California
What early intervention is, the services it can offer your baby or toddler, how referral and evaluation work, and how to begin - even by referring your own child - explained in plain language for families in the earliest years.
What early intervention is
Early intervention is a set of supports and services designed for the very youngest children - infants and toddlers from birth up to their third birthday - who have a developmental delay, or a diagnosed condition that is likely to lead to one. The idea behind it is simple and hopeful: the early years are a time of rapid brain and body growth, and the right help early on can make a real difference in how a child grows, learns, and connects.
Early intervention is a federal program that each state runs its own way. It is authorized under Part C of the Individuals with Disabilities Education Act, known as IDEA. Federal law sets the shared framework, and then each state designates a lead agency and builds its own system within it. That is why the name of the program, the office you call, and some of the specific steps can differ from what a friend describes in another state. In California, families can look up their state's early intervention or Part C lead agency to learn exactly how it works where they live.
You do not have to have all the answers to begin. You only have to make the first call. The system is built to meet you there.
Common early intervention services
Early intervention is not one single service - it is a menu of supports matched to what your child needs and what matters most to your family. No guide can promise which services a particular child will receive, but these programs commonly include:
- Developmental services that support play, learning, thinking, and social and emotional growth.
- Physical therapy to help with movement, strength, balance, and motor skills.
- Occupational therapy to build the everyday skills of reaching, grasping, feeding, and self-care.
- Speech and language therapy for communication, understanding, and early feeding.
- Family coaching so parents and caregivers learn practical ways to support their child inside normal daily routines.
- Service coordination and other supports, such as hearing, vision, or nutrition help, that connect the pieces together.
A guiding idea in early intervention is that the most powerful teacher a young child has is a confident, supported family. So much of the work happens in your home and your ordinary day - at mealtime, at bath time, during play - rather than only in a clinic.
How referral and evaluation work
The path into early intervention generally follows the same shape, even though the exact steps and timelines are set at the state level. Here is the general flow you can expect.
- Referral. Someone contacts the early intervention program about the child. This can be a doctor, a hospital, or a childcare provider - and it can be you.
- Evaluation and assessment. The program arranges an evaluation to see whether the child is eligible and to understand their strengths and needs. Under IDEA, this evaluation is provided at no cost to the family.
- Eligibility. The team reviews the results with you to determine whether your child qualifies for services.
- Planning. If your child is eligible, you and the team create a written plan, called an IFSP, that spells out the services and how they will be delivered.
Because the specific timeframes and procedures vary, ask your California early intervention program to walk you through exactly how referral, evaluation, and planning happen where you live, and what to expect at each step.
What an IFSP is
If your child qualifies, the services are organized through an Individualized Family Service Plan, or IFSP. It is a living document created together with your family. A typical IFSP describes where your child is developmentally right now, the outcomes your family hopes to reach, and the services that will help get there - including how often they happen and where.
What makes the IFSP different from a plan built only around a child is that it is centered on the whole family. You are not a bystander to it; you are a full member of the team, and your priorities and daily life shape the plan. The IFSP is reviewed and updated over time as your child grows and needs change.
Families can refer their own child
You do not need a doctor's permission or referral to start. A parent or caregiver can contact the early intervention program directly and ask for help. If something about how your baby or toddler is moving, hearing, communicating, or growing has been on your mind, that instinct is worth acting on. Reaching out costs nothing, and an evaluation can bring either reassurance or real help.
Whatever you are feeling right now - worry, uncertainty, or simply a quiet question you cannot shake - you are already doing something loving by learning what is possible. Use this guide to understand the shape of the system, then confirm the specifics with your California early intervention program.
The short version
What a new parent needs to know.
Birth to three
Early intervention supports infants and toddlers under age three with delays or disabilities. It is federally authorized under IDEA Part C and run by each state.
Real, everyday help
Developmental, physical, occupational, and speech therapy, plus family coaching - matched to your child's needs and woven into daily routines.
You can self-refer
Families can contact the program themselves - no doctor's referral needed. Evaluation is provided at no cost, and services are organized through an IFSP.
Questions families ask
Answers, in plain language.
What is early intervention?
Early intervention is a set of supports and services for infants and toddlers, from birth up to age three, who have a developmental delay or a diagnosed condition likely to lead to a delay. It is authorized under Part C of the federal Individuals with Disabilities Education Act, known as IDEA.
The federal law sets the framework, and each state runs its own early intervention system, so the lead agency and some details are set at the state level. In California, families can find their state's Part C lead agency to learn how the system works where they live.
What services does early intervention include?
Services are matched to the child's needs and the family's priorities. They commonly include developmental services, physical therapy, occupational therapy, and speech and language therapy, along with family coaching so parents and caregivers learn ways to support their child during everyday routines.
Other supports such as hearing or vision services, nutrition help, and service coordination may also be part of the plan. The exact mix depends on evaluation results and is written into the child's plan.
How does referral and evaluation work?
A child is referred to the early intervention system, then the program arranges an evaluation and assessment at no cost to the family to see whether the child is eligible and what supports would help. If the child qualifies, the family and a team develop an Individualized Family Service Plan.
Ask your California early intervention program about the specific steps and timelines that apply where you live.
What is an IFSP?
An IFSP is an Individualized Family Service Plan. It is a written plan created with the family that describes the child's current development, the outcomes the family hopes to reach, and the services that will help get there, including how often and where they happen.
Because it centers on the family, not just the child, parents are full members of the team and the plan is reviewed and updated over time.
Can families refer their own child?
Yes. You do not need to wait for a doctor to make the referral. A parent or caregiver can contact the early intervention program directly to ask for help, and so can doctors, hospitals, and childcare providers.
If you have a worry about how your baby or toddler is growing, moving, hearing, or communicating, trust it and reach out. Contact your California early intervention or Part C lead agency to begin.
Go to the source
Helpful, official resources.
Eligibility, timelines, and the exact steps are set by the state. These are authoritative places to find your California early intervention program and confirm what applies to your family right now.
Find your state early intervention contacts (CDC)
A state-by-state directory that points you to the official early intervention program and Part C lead agency for California.
IDEA Part C: the federal framework
The U.S. Department of Education's overview of Part C, the federal law that early intervention systems like California's are built within.
CDC developmental milestones
Plain-language milestone checklists that can help you notice and describe what your child is doing when you reach out for an evaluation.
Find your Parent Center
Every state has a federally funded Parent Center offering free, one-on-one guidance on early intervention, services, and your child's rights.
Teagan's Crown is not affiliated with the organizations linked above. We point you to official sources so you always work from current, accurate information.
Keep going
Related guides.
Newly diagnosed: your first steps
A calm first-steps guide for families in the early days after a new diagnosis.
Read the guide PaperworkUnderstanding your child's service plan
How an IFSP is built, what goes in it, and how to be an active partner on the team.
Read the guide FundingUnderstanding Medicaid waivers
A wider look at how Home and Community-Based Services waivers work and how families use them.
Read the guideBe that someone
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