Importance of Evaluations and Reevaluations

Evaluations—including triennial reevaluations—should never be skipped, delayed, or minimized, even when a student is already eligible for special education.

Evaluations serve as the foundation for identifying a student’s needs, determining appropriate services, and measuring progress over time. 

Under the Individuals with Disabilities Education Act (IDEA):

“The IEP Team… must review existing evaluation data… and determine what additional data, if any, are needed to determine… the educational needs of the child”

(34 C.F.R. § 300.305) 

This requirement ensures that decisions are based on current, comprehensive, and relevant data that informs the development of the IEP, including services and supports.

Annual vs. Triennial Reevaluations

Under the Individuals with Disabilities Education Act (IDEA), reevaluations must occur:

• At least once every three years

• Or more frequently if:

  • • Conditions warrant

    • A parent or teacher requests it
      (34 C.F.R. § 300.303)

However, reevaluations may not occur more than once per year unless the parent and the school agree otherwise.

This means:

• A triennial reevaluation is required at minimum

• A reevaluation may be requested annually when needed

Reevaluations should be conducted whenever there is:

• A lack of progress

• A change in needs

• Questions about the effectiveness of services

⚠️ Important Note on Reevaluations

Schools may refer to meetings as “reviews” or “reevaluation reviews.” While these discussions may involve existing data, they are not a substitute for a required triennial reevaluation.

Required evaluations should not be:

• Declined without appropriate consideration

• Deferred or delayed without clear justification

• Replaced with informal reviews or discussions

When the evaluation process is not clearly explained, families may be led to believe that reevaluations are only necessary to determine continued eligibility for special education.

This can obscure their broader purpose, which includes:

• Identifying current and evolving needs

• Informing appropriate services and supports

• Measuring progress over time

When reevaluations are deferred, limited, or not conducted, decisions may be based on incomplete or outdated data, making it more difficult to obtain appropriate services and supports over time.

What the Law Requires

Evaluations must provide current, comprehensive, and objective data to identify a student’s needs and inform educational programming.

Under the Individuals with Disabilities Education Act (IDEA):

The IEP Team must review existing data and determine “what additional data, if any, are needed to determine… the educational needs of the child”
(34 C.F.R. § 300.305)

Schools must also ensure that:

The child is “assessed in all areas related to the suspected disability”
(34 C.F.R. § 300.304(c)(4))

Evaluations must use:

“a variety of assessment tools and strategies” and not rely on any single measure
(34 C.F.R. § 300.304(b))

When Evaluations Are Incomplete, Outdated, or Delayed

When evaluations are not conducted properly or in a timely manner:

• Needs may be misidentified, under-identified, or overlooked

• Decisions may be based on incomplete or outdated data

• Services and supports may not be appropriately designed or aligned to need

• Progress may not be accurately measured or understood

As a result, the IEP may not be reasonably calculated to enable meaningful progress, as required under IDEA.

Impact on Educational Programming

When evaluation data is insufficient:

• Present levels may not accurately reflect current performance

• Goals may not target the student’s actual needs

• Services may be ineffective or misdirected

• The IEP Team may lack a reliable basis to make informed decisions

These conditions may result in a failure to provide a Free Appropriate Public Education (FAPE).

ADA and Section 504 Implications

Under the Americans with Disabilities Act (ADA) and Section 504 of the Rehabilitation Act, schools must ensure that students with disabilities have equal access to educational programs and services.

Federal regulations require that schools may not:

Provide aids, benefits, or services that are “not as effective as those provided to others”
(34 C.F.R. § 104.4(b)(1)(iii))

When evaluations are incomplete, outdated, or delayed:

• Services may not be based on accurate or current needs

• Supports may be insufficient or ineffective

• The student may be unable to access instruction or benefit from services

Under these conditions, a student may not receive services that are comparable in effectiveness, which may raise concerns regarding equal access and non-discrimination under federal law.

Legal Principles

Evaluations are not a one-time requirement—they are the foundation for all educational decisions.

When evaluations are incomplete, outdated, or delayed, the entire educational program may be based on inaccurate or insufficient information, limiting both:

• meaningful progress under IDEA

• equal access under ADA and Section 504