Early Start Denver Model (ESDM) delivered to children aged 18–30 months produced significant gains in IQ, adaptive behaviour, and autism severity — some children no longer met diagnostic criteria at follow-up
Last updated: August 2026
In short
Ontario Autism Program Core Clinical Services fund five major therapy types: ABA, speech-language pathology, occupational therapy, mental health services, and communication aids. OAP does not cover assessments, respite care, or services at private schools.
General information only—not a diagnosis, treatment plan, crisis service, or individual estimate. Confirm your next step with the linked source or a qualified professional.
Every number on this page is a child waiting through the critical early-intervention window.
Ontario Autism Program (OAP) Core Clinical Services cover five therapy types: Applied Behavior Analysis (ABA), speech-language pathology, occupational therapy, mental health services, and communication aids. OAP does not fund initial assessments, respite care, or private school services. Families direct annual funding of $6,600–$65,000 toward approved providers, based on age and support level.
Core Clinical Services
OAP Covers These 5 Therapies
ABA Therapy
Applied Behavior Analysis therapy is a primary OAP-funded intervention. Focuses on skill development and behavior reduction; hours are set individually in each child's plan and commonly total part-time weekly amounts.
Speech-Language Pathology
Speech-language pathology (SLP) services address communication and language development. Often combined with ABA; typically a short weekly block depending on the child's plan.
Occupational Therapy
OT addresses fine motor skills, sensory integration, self-care, and daily living. Integrated with other therapies; typically a short weekly block depending on the child's plan.
Mental Health Services
Counseling and psychological services for children with autism and comorbid conditions (anxiety, depression). Varies by provider network.
Technology & Communication Aids
AAC devices, communication software, and adaptive technology to support communication. Subject to specific criteria and funding limits.
OAP Does NOT Cover
Autism Assessments
Initial diagnostic assessments and evaluations are NOT funded by OAP. Must be arranged privately or through public health.
Respite Care
Respite care (emergency childcare/relief) is NOT included in OAP Core Clinical Services. Must access separately.
Private School Services
Therapies provided at private schools typically are not OAP-eligible unless special arrangements are made.
Travel & Transportation
Travel costs to attend therapy appointments are not covered by OAP funding.
Recreational/Summer Programs
Recreational programs, summer camps, and community activities are not OAP-funded Core Clinical Services.
How to Get OAP-Funded Therapy
Register with OAP: Apply through your local Developmental Services Outreach program (DSO).
Wait for assessment: Average wait time is 60+ months from registration.
Receive Core Clinical funding: Once approved, receive funding to direct toward approved therapies.
Access services: Work with approved service providers to begin therapy.
While You Wait for OAP Funding
Ontario offers free Foundational Family Services immediately after registration, including parent coaching and access to public health services. Many families also pursue private therapy options while on the OAP waitlist.
Evidence for this answer
- MCCSS bi-weekly OAP Core Clinical Services progress reports (FOI release CSS2026-0749). Ministry of Children, Community and Social Services (Ontario) (March 2026)
- Ministry of Children, Community and Social Services: Spending Plan Review (2024). Financial Accountability Office of Ontario (2024)
Frequently Asked Questions
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Written by Spencer Carroll
Founder & Autism Advocate
Evidence on this page
The source chain stays visible.
Key claims are paired with their source, evidence tier, and verification date so readers can inspect the public record directly.
Cochrane systematic review finds evidence that early intensive behavioural intervention (EIBI) may produce positive effects on adaptive behaviour and communication for young children with ASD (low certainty of evidence)
WHO recommends accessible, community-based early interventions for children with autism. Timely evidence-based psychosocial interventions improve communication and social engagement