IDEA Disability Categories in Colorado
What disability categories qualify for an IEP in Colorado?
Colorado recognizes 14 disability categories under 1 CCR 301-8 (ECEA Rules), §2.09, which largely mirror federal IDEA categories but with important distinctions. The most notable Colorado-specific differences are: (1) 'Serious Emotional Disability' (SED) is used instead of the federal 'Emotional Disturbance' (ED) — same criteria, different label, significant for records and communications; (2) 'Developmental Delay' applies to children ages 3 through 8 only (Part C covers birth through age 2 as 'Infant/Toddler with a Disability'); (3) Multiple Disabilities specifically requires that intellectual disability be one of the component disabilities; (4) Specific Learning Disability eligibility uses a body-of-evidence/RTI approach, not a severe discrepancy model; and (5) Developmental Delay requires a score at or below the 7th percentile (approximately 1.5 standard deviations below the mean) on a standardized instrument, and the category should be used only when a clear determination cannot be made under another category. SLD identification using RTI data is consistent with IDEA's permit for alternative research-based procedures (34 CFR 300.307(a)(2)).
What Colorado Requires
Colorado uses 'Serious Emotional Disability' (SED) instead of the federal 'Emotional Disturbance' — this terminology distinction is important for records and communications (1 CCR 301-8, §2.09(3)).
Developmental Delay applies only to children ages 3 through 8; children ages birth through 2 are served under Part C as 'Infant/Toddler with a Disability' per 2 CCR 503-1 (1 CCR 301-8, §§2.09(13)-(14)).
To qualify as Developmentally Delayed, the child must score at or below the 7th percentile (approximately 1.5 standard deviations below the mean) on a standardized developmental instrument, and the category is used only when a more specific eligibility category cannot be clearly determined (1 CCR 301-8, §2.09(13)).
Multiple Disabilities requires that intellectual disability be one of the component disabilities; the combination causes such severe educational needs that the child cannot be accommodated in programs for a single disability (1 CCR 301-8, §2.09(5)).
SLD eligibility uses a body-of-evidence approach consistent with IDEA's RTI/problem-solving model; Colorado does not rely solely on a severe discrepancy between ability and achievement (1 CCR 301-8, §2.09(8); 34 CFR 300.307(a)(2)).
Key Timelines
Eligibility under Developmental Delay expires when the child reaches age 9; the IEP team must determine eligibility under a different category or exit the child from special education (1 CCR 301-8, §2.09(13)).
Reevaluation to confirm continuing eligibility must occur at least every three years (34 CFR 300.303).