ABA therapy, explained for families who have to make decisions about it

What ABA is

Applied behaviour analysis is a way of teaching skills and changing behaviour that works from observation and measurement. A practitioner looks at what happens before a behaviour, what the behaviour is, and what follows it, then adjusts the environment or the consequences and measures whether anything shifts. With autistic children it is most often used to teach communication and daily-living skills, and to reduce behaviour that is dangerous or that closes doors for the child.

The credential families meet most is the Board Certified Behavior Analyst, or BCBA. The Behavior Analyst Certification Board describes it as a graduate-level certification, and a BCBA can practise independently and supervise the technicians who deliver most of the hours, usually Registered Behavior Technicians (RBTs). In practice the BCBA writes and reviews the plan and an RBT runs the sessions. Whether the BCBA must also hold a state licence depends on the state, and that matters further down this page.

ABA also carries a real argument with it. Many autistic adults who went through older, compliance-heavy versions of it describe that experience as harmful, and current practice is supposed to look different: goals the child and family actually want, consent and assent taken seriously, and harmless behaviour left alone. That history is one reason the questions in the provider section below are worth asking out loud before you sign anything.

What ABA is usually working on

Goals are set per child in a treatment plan, and a good plan is specific enough that you could tell whether it worked. The areas that come up most are functional communication (asking for something, saying no, asking for a break), daily-living skills such as dressing, toileting and eating, tolerating transitions and waiting, safety skills such as stopping at a road, play and social skills, and replacing behaviour that hurts the child or other people. Most plans also include parent training, because the hours a therapist is present are a small fraction of the week.

How many hours are recommended is a clinical decision made after an assessment, and how many are approved is a funding decision made by the payer. Those two numbers are not always the same, which is where a lot of the friction in ABA comes from. A plan can also name what it will leave alone, and it is fair to ask for that in writing: rocking, flapping or scripting that harms nobody should not be a target just because it is visible.

How ABA differs from what the school provides

These get confused constantly, and the confusion costs families months.

The school district is responsible for a free appropriate public education under IDEA, delivered through an IEP. In New York that runs through the district's Committee on Special Education. An IEP can include behavioural supports, a functional behavioural assessment, a behaviour intervention plan and classroom staff, and some school staff use ABA methods. What a district is not required to do is fund ABA as a medical therapy, and a request framed that way usually goes nowhere.

ABA as a therapy is a health service. It is authorised and paid for by your insurer or your Medicaid plan, delivered by a provider you choose, and it happens at home, in a clinic or in the community. Some providers will also deliver it inside a school if the school agrees, but that is the school's decision, and in New York Medicaid will not reimburse ABA delivered in a school setting at all.

So a dispute about classroom support is a special education matter with its own appeal route, and a dispute about therapy hours is an insurance or Medicaid matter with a different one. Our advocacy and school page covers the first. This page covers the second.

Where ABA sits in the developmental disability system

In New York the Office for People With Developmental Disabilities decides eligibility for the developmental disability system and funds services such as community habilitation, respite, day programmes, employment supports and housing. ABA is not on that list. It is a health benefit, covered through insurance or Medicaid under separate rules, and a child can be receiving both at once.

What OPWDD does give you is a care manager at a Care Coordination Organization, and a good care manager will help you coordinate therapy with everything else even though they do not authorise it. The rest of this site explains that system: how eligibility and care coordination work and what counts as a developmental disability in New York. Most other states are built the same way, with a developmental disability agency and waiver programmes on one side and a health benefit on the other, but the names, the definitions and the waiting lists are all their own.

How families evaluate an ABA provider

Credentials first, because they are the easiest thing to fake by implication. Ask for the name of the BCBA who will own your child's plan, then check them in the Behavior Analyst Certification Board registry. In a state that licenses behaviour analysts, check the licence as well. In New York that is the State Education Department's Office of the Professions.

Then ask about the shape of the service. How many cases does that BCBA carry, and how often will they be in the room rather than reviewing notes? Who sets the goals, and what happens if you disagree with one? What does the provider do when the child refuses a task? How are you involved, and can you watch a session? Where will sessions happen? What data will you be shown, how often, and what would make them recommend reducing hours or stopping?

Ask what they will not target. A provider who cannot name a behaviour they would leave alone is worth a second look. Ask how they handle a denied or partially approved authorisation, because that will happen at some point. And ask what happens at the ages where funding changes, at 18 or 21 depending on the state and the payer, so the end of therapy is planned rather than sudden.

Insurance and Medicaid, at a high level

There are two broad routes, and the rules for each are set state by state.

The first is commercial insurance. Most states require plans regulated by the state insurance department to cover autism treatment, and ABA specifically, but that mandate only reaches state-regulated plans. Many large employers self-fund their plans, and those are governed by federal law, so the state mandate may not apply. The plan documents, or a call to the insurer, will tell you which kind you have.

The second is Medicaid. Federal law requires state Medicaid programmes to cover medically necessary services for members under 21, a benefit called Early and Periodic Screening, Diagnostic and Treatment, and states cover ABA under it. Each state decides who can provide it, whether a specific diagnosis is required, who has to make the referral, and where it can be delivered.

Under both routes, expect prior authorisation. A provider assesses the child, submits a treatment plan, and the payer approves a block of hours for a fixed period. Some states cap the hours in law; others leave it to medical necessity. Reauthorisation comes round on a schedule, and gaps between one approval and the next are the most common reason therapy stops for a while.

Why availability and eligibility differ by state

Five things are decided by each state on its own, and together they explain why a family can have a smooth experience in one state and a wall in the next.

• The state's Medicaid policy on ABA: age limit, diagnosis requirement, who may refer, which settings are reimbursable, whether services run through managed care plans.
• The insurance mandate and its limits, including whether hour or dollar caps survive.
• Whether behaviour analysts must be licensed by the state, or whether the BCBA certification alone is the credential.
• The waiver programmes for children with developmental disabilities, and the length of their waiting lists.
• How Early Intervention for children under three is organised and who you call.

Underneath all of that is provider supply. A state with generous rules and few BCBAs outside its cities can still leave a family waiting for a year. Ask about waits before you ask about anything else.

What to verify if you are moving between states

Medicaid does not move with you. Coverage ends when your residency in the old state ends, and the new state's application starts from zero, so apply as early as the new state allows and plan for a gap. Commercial coverage may change too, particularly if the move comes with a new employer; ask whether the new plan is state-regulated or self-funded before assuming the autism mandate applies.

Your current provider almost certainly cannot follow you. They would need to be enrolled with the new state's Medicaid or the new plan, and licensed in the new state where licensure exists. Before you leave, ask for the initial assessment, the current treatment plan, recent progress data and a discharge summary, because the new provider will need them for their own authorisation request and it shortens the wait.

If the child is under three and has an Early Intervention plan, refer them to the new state's programme as soon as you have an address. If the child has an IEP, federal regulation 34 CFR 300.323(f) requires the new district to provide services comparable to the old IEP until it evaluates the child, if it decides that is necessary, and adopts its own. Carry the IEP and the last evaluations with you. For developmental disability services and waivers, the new state's agency will make its own eligibility decision, so bring the diagnostic reports and any evidence of onset in childhood, and join the new state's waiting lists the week you arrive rather than the month therapy stalls.

We keep a separate page on the New York side of this: moving to or from New York.

How New York's system is structured

Commercial insurance. New York's autism coverage law applies to state-regulated plans, and the Department of Financial Services set out the standards in Circular Letter No. 6 of 2014. Two details matter to families: coverage of applied behaviour analysis is subject to a limit of 680 hours per policy or calendar year per covered person, and since 11 October 2014 ABA has to be delivered by someone licensed under New York's Education Law for the insurer to cover it.

Medicaid. New York Medicaid covers ABA for members under 21 who have a diagnosis of autism spectrum disorder under DSM-5 criteria, or Rett syndrome. The referral must come from a New York-licensed, Medicaid-enrolled physician, psychologist, psychiatric or paediatric nurse practitioner, or physician assistant. Since 1 January 2023 the benefit has run through Medicaid Managed Care, so the child's plan handles authorisation and the provider must be in that plan's network. The state's policy manual is explicit that Medicaid does not reimburse ABA delivered in a school setting.

Who may provide it. New York licenses the profession. The State Education Department's Office of the Professions issues the Licensed Behavior Analyst and Certified Behavior Analyst Assistant credentials, and both insurance and Medicaid coverage depend on the provider holding one.

Everything else. Eligibility for developmental disability services runs through the OPWDD Front Door, which is separate from all of the above, and Early Intervention for children under three is run by the county. Our autism support by age page walks through who is responsible at each age in Orange County.

ABA resources for families moving to Colorado

Colorado is included here because it differs from New York on almost every point above: Medicaid diagnosis rules, insurance caps, licensure timing and waiver structure. A family moving from Orange County to Colorado has to re-learn the system rather than translate it.

Medicaid. Health First Colorado, the state's Medicaid programme, covers behavioural therapy including ABA for members under 21 as its Pediatric Behavioral Therapies benefit. Every course of treatment needs a Prior Authorization Request, submitted by a contracted provider after assessing the child, and an approved request is valid for up to six months before a new one is due. Unlike New York, an autism diagnosis is not required: the benefit is available to any eligible child when the therapy is medically necessary. Families over the income line are pointed to the Children's Buy-In Program. The Department of Health Care Policy and Financing publishes a list of contracted providers.

Waivers. Colorado does not have an autism waiver. Its children's home and community-based waivers are the Children's Extensive Support, Children with Complex Health Needs and Children's Habilitation Residential Program waivers, and they are applied for through the local Case Management Agency. The state keeps a directory of Case Management Agencies by county. Ask about waiting lists on the first call.

Commercial insurance. Colorado's autism insurance law, Senate Bill 09-244, took effect in July 2010 and requires state-regulated plans to cover autism treatment including ABA. Senate Bill 15-015 removed the age and dollar caps from January 2017. As everywhere, self-funded employer plans sit outside the state law.

Licensure. Colorado has just changed this. House Bill 26-1425, signed on 2 June 2026, creates a Colorado Behavior Analyst Licensing Board under the Department of Regulatory Agencies, and from 1 July 2028 practising applied behaviour analysis in the state will require a licence from it. Until then, BCBA certification is the credential to check.

Under three. Early Intervention Colorado serves children from birth until their third birthday and is run by the Colorado Department of Early Childhood. The statewide referral line is 833-733-3734. If you arrive with a child on an Early Intervention plan from New York, call it the week you have an address.

Providers. Colorado has a mix of clinic-based and in-home providers, and the state's contracted-provider list is the place to start if the child will be on Health First Colorado. One example of the in-home model is Budding Futures ABA, a BCBA-led practice that delivers ABA in family homes across Colorado and inside school settings where a school agrees to it, works with Health First Colorado and commercial plans, and serves children from 18 months to 18 years. As with any provider, ask the questions in the section above before you commit, and ask about the wait first.

Sources

• Behavior Analyst Certification Board: the BCBA credential
• NY Department of Financial Services, Circular Letter No. 6 (2014): standards for insurance coverage of ABA
• NY State Medicaid Applied Behavior Analysis Policy Manual (PDF)
• NYSED Office of the Professions: applied behavior analysis licensure
• NYS Office for People With Developmental Disabilities
• 34 CFR 300.323, including (f) on children who transfer from another state
• Colorado HCPF: Pediatric Behavioral Therapies benefit
• Colorado HCPF: home and community-based services waivers
• Autism Speaks: Colorado state-regulated insurance coverage
• Colorado General Assembly: HB26-1425, Applied Behavior Analysis Services
• Colorado Department of Early Childhood: Early Intervention

General information, not medical, legal or financial advice. Coverage rules, hour limits and licensure requirements change; confirm with your plan, your state's Medicaid agency and the provider before relying on anything here. Verified against the sources above, 2026-09-10.