IDEA Disability Categories in South Carolina
What disability categories qualify for an IEP in South Carolina?
South Carolina recognizes 14 disability categories under Regulation 43-243.1 (Standards for Evaluation and Eligibility Determination — SEED), which largely mirror federal IDEA categories with some state-specific eligibility criteria. The categories are: (1) Autism Spectrum Disorder; (2) Deaf-Blindness; (3) Deaf/Hard of Hearing; (4) Developmental Delay (ages 3-8 only); (5) Emotional Disability (uses 'Emotional Disability' instead of the federal 'Emotional Disturbance'); (6) Intellectual Disability (substituted for 'mental retardation' per 2011 Act No. 47); (7) Multiple Disabilities; (8) Orthopedic Impairment; (9) Other Health Impairment (includes ADHD and anxiety/depression not rising to Emotional Disability level); (10) Specific Learning Disability; (11) Speech-Language Impairment; (12) Traumatic Brain Injury; (13) Visual Impairment; and (14) Deaf-Blindness as a combined category. Key South Carolina distinctions: Developmental Delay requires performance at least 2.0 standard deviations below the mean in one area OR 1.5 standard deviations in two or more areas (or 40% delay in one area, 25% in multiple areas); Emotional Disability requires the condition to persist at least 6 weeks despite intervention (except for extreme safety concerns); SLD eligibility uses a body-of-evidence approach; and Speech-Language Impairment has specific quantitative criteria including Pediatric Voice Index scores and consonant-correct percentages.
What South Carolina Requires
South Carolina uses 'Emotional Disability' (ED) instead of the federal 'Emotional Disturbance' — this terminology distinction is important for records and communications (Reg. 43-243.1, Section F).
South Carolina uses 'Intellectual Disability' replacing the former 'mental retardation' per 2011 Act No. 47 — requires cognitive functioning and adaptive behavior both at least 2 standard deviations below the mean (Reg. 43-243.1, Section G).
Developmental Delay applies only to children ages 3 through 8; requires performance at least 2.0 SD below mean in one area or 1.5 SD below mean in two or more areas (or 40% delay in one area, 25% in multiple areas) (Reg. 43-243.1, Section E).
Emotional Disability requires the social-emotional/behavioral condition to persist at least 6 weeks despite intervention, except in extreme cases involving safety concerns (Reg. 43-243.1, Section F).
SLD eligibility uses a body-of-evidence approach that may include RTI data; a severe discrepancy model is not required as the sole criterion (Reg. 43-243.1, Section K).
Speech-Language Impairment has state-specific quantitative criteria including Pediatric Voice Index scores (59-81), consonant correct percentages below 84%, and OASES fluency scores (45-100) (Reg. 43-243.1, Section L).
Multiple Disabilities requires evidence that the interaction of disabilities creates a need for distinctly different programming than either category alone — stricter than the federal minimum (Reg. 43-243.1, Section H).
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 (Reg. 43-243.1, Section E).
Reevaluation to confirm continuing eligibility must occur at least every three years (34 CFR 300.303).