Understanding IDEA Eligibility Categories

Under the Individuals with Disabilities Education Act (IDEA), students may qualify for special education services in one of thirteen eligibility categories. Understanding these disabilities, eligibility standards, and effective support strategies helps educators create inclusive learning environments where all students can succeed. This section offers characteristics, eligibility criteria, resources, videos, and classroom supports for each disability category.

“Every student can learn, just not on the same day or in the same way.”
— George Evans

Academic Learning

Students with academic learning differences may require specialized instruction and supports to access grade-level curriculum and demonstrate their strengths. These eligibility categories recognize that learning occurs in various ways and that personalized supports can help students develop academic, cognitive, and adaptive skills. Acknowledging these traits helps educators design meaningful learning experiences that foster growth, independence, and success for all learners.

Specific Learning Disability (SLD)

involved in understanding or using spoken or written language. Students with SLD may face challenges with reading, writing, spelling, listening, speaking, reasoning, or math calculations. These difficulties result from how the brain processes information and are not due to intellectual disabilities, sensory impairments, or lack of instruction.

Descriptors / Characteristics

  • Difficulty with decoding, reading fluency, and comprehension
  • Challenges with written expression (spelling, organization)
  • Math calculation or problem-solving difficulties
  • Problems with memory or processing speed
  • Average or above-average intelligence with unexpected academic gaps

Eligibility Determiners

  • Documented processing deficits
  • Achievement significantly below expectations
  • Comprehensive evaluation
  • Response to Intervention (RTI) data
  • Disability adversely affects educational performance

Resources

Intellectual Disability (ID)

Intellectual Disability (ID) involves significant limitations in intellectual functioning and adaptive behavior. These limitations impact conceptual, social, and practical skills used in daily life. Students with ID may need extra support to learn academic subjects and build independence.

Descriptors / Characteristics

  • Delays in reasoning and problem-solving
  • Difficulty with communication and social skills
  • Slower learning rate
  • Challenges with adaptive and daily living skills
  • Need for repeated instruction and support

Eligibility Determiners

  • Standardized cognitive assessments
  • Adaptive behavior evaluations
  • Onset before age 18
  • Evidence that the disability affects educational performance

Resources

Communication and Sensory Supports

Communication and sensory differences affect how students receive information and engage with others. Through accommodations, assistive technology, and specialized instruction, educators can help students access learning environments and participate fully in school.

Autism Spectrum Disorder (ASD)

Autism Spectrum Disorder (ASD) is a developmental disability that impacts communication, social interaction, behavior, and sensory processing. Characteristics differ from person to person, and students with ASD may show a wide range of strengths and support needs.

Descriptors / Characteristics

  • Differences in social communication
  • Restricted or highly focused interests
  • Repetitive behaviors or movements
  • Sensory sensitivities
  • Preference for routines and predictability

Eligibility Determiners

  • Developmental history
  • Observation across multiple settings
  • Communication and behavioral assessments
  • Multidisciplinary evaluation
  • Educational impact

Resources

Speech or Language Impairment (SLI)

Speech or Language Impairment refers to communication disorders involving speech sounds, language, voice, or fluency that negatively impact a student’s educational performance. Difficulties may include articulation issues, language delays, or stuttering.

Descriptors / Characteristics

  • Difficulty producing speech sounds
  • Delays in understanding or using language
  • Voice disorders
  • Stuttering or fluency disorders
  • Problems expressing thoughts clearly

Eligibility Determiners

  • Comprehensive speech-language evaluation
  • Communication assessments
  • Educational impact
  • Determination by a speech-language pathologist and a multidisciplinary team

Resources

Hearing and Vision Supports

Students with hearing and vision differences may need specialized services and accommodations to access communication, instruction, and their learning environment. Inclusive practices foster independence, participation, and meaningful connections with peers.

Hearing Impairment (HI)

Hearing impairment is a hearing loss, whether permanent or fluctuating, that negatively impacts educational performance but does not qualify as deafness.

Descriptors / Characteristics

  • Difficulty hearing spoken language
  • Delays in language development
  • Need for amplification devices
  • Reliance on visual cues
  • Difficulty understanding speech in noisy settings

Eligibility Determiners

  • Audiological evaluation
  • Evidence of educational impact
  • Functional assessment
  • Team determination

Resources

Deafness

Deafness is a serious hearing impairment that reduces a student’s ability to understand language through hearing, whether or not amplification is used, and negatively impacts educational performance.

Descriptors / Characteristics

  • Significant or profound hearing loss
  • Communication differences
  • Use of sign language or visual communication
  • Need for specialized instructional supports
  • Reliance on visual information

Eligibility Determiners

  • Audiological evaluation
  • Communication assessments
  • Educational impact
  • Multidisciplinary team review

Resources

Visual Impairment Including Blindness (VI)

Visual Impairment Including Blindness refers to a vision impairment that, even with correction, adversely affects educational performance. This category includes both partial sight and blindness.

Descriptors / Characteristics

  • Reduced visual acuity
  • Difficulty accessing printed materials
  • Need for Braille or assistive technology
  • Orientation and mobility challenges
  • Need for enlarged print or audio materials

Eligibility Determiners

  • Eye examination by a qualified professional
  • Functional vision assessment
  • Educational impact
  • Team evaluation

Resources

Deaf-Blindness

Deaf-blindness is a combined hearing and vision impairment that results in significant communication, developmental, and educational challenges. The presence of both sensory impairments creates unique difficulties that cannot be fully addressed with programs designed solely for students who are deaf or hard of hearing or for students with visual impairments. Students with deaf-blindness have a diverse range of abilities and support needs, often benefiting from personalized instruction and specialized services.

Descriptors / Characteristics

  • Combined hearing and vision loss
  • Difficulties with communication and language development
  • Delays in social, emotional, and cognitive development
  • Challenges accessing information from the environment
  • Need for tactile, auditory, or visual supports
  • Difficulty with orientation and mobility
  • May require assistive technology and specialized instructional strategies
  • Strengths and support needs vary from student to student

Eligibility Determiners

  • Audiological evaluation documenting hearing impairment
  • Ophthalmological or vision assessment documenting visual impairment
  • Functional vision and hearing evaluations
  • Multidisciplinary evaluation
  • Evidence that the combined sensory impairments adversely affect educational performance
  • Need for specialized services and supports beyond those provided for a single sensory impairment

Resources

Social, Emotional, and Health Supports

Physical health, emotional well-being, and neurological conditions can greatly influence learning and participation in school. These categories emphasize the need for collaboration, positive supports, and tailored services that promote student success.

Emotional Impairment (EI)

Emotional Impairment (EI) describes emotional or behavioral responses that are substantially different from age, cultural, or ethnic norms and that negatively impact educational performance. These traits are demonstrated over an extended period and to a significant extent.

Descriptors / Characteristics

  • Anxiety, depression, or mood instability
  • Difficulty maintaining relationships with peers and adults
  • Inappropriate behaviors or feelings
  • Withdrawal or social isolation
  • Difficulty regulating emotions

Eligibility Determiners

  • Psychological evaluation
  • Behavioral observations across settings
  • Evidence of educational impact
  • Multidisciplinary team review
  • Characteristics present over an extended period of time

Resources

Other Health Impairment (OHI)

Other Health Impairment (OHI) refers to having limited strength, vitality, or alertness due to chronic or acute health conditions that negatively affect educational performance. Common examples include ADHD, diabetes, epilepsy, asthma, and Tourette syndrome.

Descriptors / Characteristics

  • Difficulty sustaining attention
  • Fatigue or reduced stamina
  • Limited alertness
  • Challenges with organization
  • Health-related interruptions to learning

Eligibility Determiners

  • Medical documentation
  • Educational impact
  • Comprehensive evaluation
  • Multidisciplinary team determination

Resources

Traumatic Brain Injury (TBI)

Traumatic Brain Injury (TBI) is an acquired injury to the brain caused by external physical force that negatively affects educational performance. The effects may be temporary or permanent and can influence cognitive, physical, emotional, and behavioral functioning.

Descriptors / Characteristics

  • Memory difficulties
  • Problems with attention and concentration
  • Changes in behavior or emotions
  • Difficulty with organization and planning
  • Slower processing speed

Eligibility Determiners

  • Medical history and documentation
  • Evaluation by qualified professionals
  • Evidence of educational impact
  • Multidisciplinary assessment

Resources

Physical and Developmental Supports

Some students need specialized services due to physical disabilities or multiple disabilities. These supports help ensure access to learning, promote independence, and create opportunities for meaningful participation in school and the community.

Orthopedic Impairment (OI)

Orthopedic Impairment refers to serious physical disabilities that negatively impact educational performance. These conditions may be congenital, caused by disease, or result from injury.

Descriptors / Characteristics

  • Limited mobility
  • Muscle weakness
  • Need for adaptive equipment
  • Difficulty with fine or gross motor skills
  • Physical limitations affecting classroom participation

Eligibility Determiners

  • Medical documentation
  • Physical and functional assessments
  • Evidence of educational impact
  • Team determination

Resources

Multiple Disabilities (MD)

Multiple disabilities refer to the presence of two or more disabilities that create significant educational needs, requiring specialized supports and services beyond those needed for a single disability.

Descriptors / Characteristics

  • Complex support needs
  • Delays across multiple developmental areas
  • Need for individualized instruction
  • Extensive accommodations and related services
  • Significant impact on learning and daily functioning

Eligibility Determiners

  • Comprehensive multidisciplinary evaluation
  • Functional assessments
  • Evidence of educational impact
  • Need for extensive support services

Resources

“Inclusive education is built on the belief that every learner deserves opportunities to participate, belong, and succeed.”