Developmental disability

• ​​Developmental Disability (DD) is a severe mental or physical impairment or combination of mental and physical impairments
• Begins before an individual is 22 years of age or 18 years of age for an intellectual disability;
• Begins in and directly affects the brain and has continued, or is expected to continue, indefinitely;
• Causes significant impairment of daily living skills (adaptive behavior) such as, but not limited to, communicating, grooming, dressing, safety and social skills.
• Other developmental disabilities include autism, cerebral palsy, epilepsy, or other neurological disabling conditions.

See the full definition of Developmental Disability in OAR 411-320-0020.

Intellectual disability

• ​Intellectual Disability (ID) means significantly sub-average intellectual functioning with an intelligence quotient (IQ) of 70 and under as measured by a qualified professional, along with a lack of daily living skills (adaptive behavior) such as, but not limited to, communicating, grooming, dressing, safety and social skills, that show up prior to 18 years of age.
• Individuals with IQ’s of 71-75 may be considered to have an intellectual disability if there is also significant impairment in adaptive behavior as diagnosed by a licensed clinical or school psychologist.

• See the full definition of Intellectual Disability in OAR 411-320-0020.