The IEP Myth: Is Special Education "Only DIS Services"?

During an IEP meeting, a parent was told by school staff that "special education is only DIS services."Hearing this can make it seem like an IEP is just a checklist of pull-out therapies. If your school team tells you this, they are incorrect under federal and state law.

Understanding what the Individuals with Disabilities Education Act (IDEA) actually says can help you correct this common misconception.

What does "DIS" mean anyway?

In California, DIS stands for Designated Instruction and Services. Under federal law (IDEA), these are called Related Services.

DIS/Related Services are supportive therapies a child needs to help them benefit from their education.Examples include:

• Speech and Language Therapy

  
  

• Occupational Therapy (OT)

  
  

• Physical Therapy (PT)

  
  

• School-based Counseling

  
  

• Behavioral Services

  
  

• Educationally Related Mental Health Services

  
  

Saying special education is only DIS services is like saying a car is only the windshield wipers. Wipers are a helpful accessory, but they aren't the engine.

The Legal Definition of Special Education

Under the actual federal law, 34 CFR § 300.39(a)(1), Special Education is defined as:

"...specially designed instruction, at no cost to the parents, to meet the unique needs of a child with a disability..."

The core engine of an IEP is Specially Designed Instruction (SDI).

What is Specially Designed Instruction (SDI)?

According to 34 CFR § 300.39(b)(3), "specially designed instruction" means the school must adapt the:

1. Content (what is being taught),

2. Methodology (how it is being taught), or

3. Delivery of instruction (where and by whom it is taught).

   
   

The school must make these adaptations to ensure the student can access the general education curriculum and meet the educational standards that apply to all children.

What the Courts Say: Related Services Cannot Stand Alone

The U.S. Supreme Court has made it very clear that special education is focused on instruction, not just therapies.

In the historic case Endrew F. v. Douglas County School District (2017), the Supreme Court ruled that a school must offer an IEP that is "reasonably calculated to enable a child to make progress appropriate in light of the child’s circumstances." The court emphasized that this progress requires a tailored educational program and specialized teaching, not just a handful of speech or counseling sessions thrown at a student.

Furthermore, if a child only needs a related service (like speech therapy) but does not require any changes to how they are taught in the classroom (SDI), many states will not even qualify them for an IEP. They might get a 504 Plan instead. This proves that instruction is the actual requirement for an IEP, not DIS.

What the Department of Education Says (Dear Colleague Letters)

The U.S. Department of Education regularly sends out guidance documents called "Dear Colleague Letters" to remind schools what the law actually requires.

• The FAPE Dear Colleague Letter (November 16, 2015): The Office of Special Education and Rehabilitative Services (OSERS) explicitly stated that an eligible child's IEP must be aligned with the state’s academic content standards for the grade in which the child is enrolled. This document clarifies that special education is about remediating academic and functional gaps through specialized teaching methods so the child can keep up with their peers.

  
  

• Behavioral Supports Guidance (August 1, 2016): This letter reminded schools that if a child’s behavior gets in the way of learning, the school cannot just give them a DIS counselor for 30 minutes a week and call it a day. They must integrate specially designed behavioral instruction and classroom modifications directly into the student's daily routine.

  
  

Summary for Parents

If a school staff member tells you that special education is "only DIS services," you can politely but firmly correct them using these points:

1. Quote the Regulation: "Under 34 CFR § 300.39, special education is legally defined as specially designed instruction, not just therapies."

2. Ask about SDI: "What changes are we making to the content, methodology, or delivery of my child’s daily classroom lessons to help them learn?"

3. Look at the Big Picture: Remind the team that DIS services are meant to support specialized instruction, not replace it.

An IEP is a complete customized learning roadmap. Do not let a school team shrink your child's right to specialized teaching down to a few therapy minutes a week.