IEP vs 504 Plan: How to Request School Support for Your Child

This page describes the US system. Provision differs in other countries.

The core difference

An IEP changes what and how your child is taught. A 504 plan changes the conditions they're taught in.

A child who needs a modified curriculum, specialist reading instruction, or speech therapy delivered at school needs an IEP. A child who can access the same curriculum as everyone else but needs extra time, preferential seating, or movement breaks may need a 504 plan.

	IEP	504 plan
Law	IDEA — special education law	Section 504 of the Rehabilitation Act — civil rights law
Eligibility	One of 13 IDEA disability categories and needing special education to make progress	Broader — a disability substantially limiting a major life activity
Provides	Specialized instruction, related services, accommodations	Accommodations; generally not specialized instruction
Evaluation	Comprehensive, by qualified professionals, covering all areas of suspected disability	Sufficient information to make an informed decision; less prescribed
Timeline	Generally 60 days from written parental consent; states may shorten, not extend	No federal timeline — a "reasonable" period
Goals	Measurable annual goals with progress monitoring	No requirement for measurable goals
Review	Annually; full reevaluation at least every three years	Periodically; no federal requirement on frequency
Parent role	Equal member of the IEP team	Encouraged; less formally structured
Safeguards	Extensive — prior written notice, independent evaluation rights, mediation, due process	Fewer, though civil rights protections remain

Both are legally binding. A school that doesn't follow either is out of compliance.

A 504 plan is not a "starter IEP"

This is the most important thing on the page.

504 plans were never designed as a trial run, a stepping stone, or something to try before an IEP. They're a different route for a different need.

If you're being steered toward a 504 when you think your child needs specialized instruction, that's worth pushing back on. It happens, and the reason is usually resource-related rather than educational — a 504 costs a school considerably less than an IEP.

You can request an IEP evaluation in writing at any time, regardless of whether a 504 plan is already in place
Having a 504 does not prevent or delay an IEP evaluation
A school cannot require you to try a 504 first
Movement between the two should be based on current evaluation data, not on administrative convenience

If a 504 is proposed and you're unsure, a reasonable response is: "I'd like a full evaluation under IDEA to determine whether my child is eligible for an IEP. I'm submitting that request in writing today."

Two things to know before you start

You don't need a medical diagnosis. Schools conduct their own evaluations and determine eligibility on educational need. A private diagnosis can support your case and isn't a prerequisite. Don't wait for a diagnostic appointment to start this process.

Schools have a legal obligation to identify children who may need services. Under IDEA's Child Find requirement, districts must locate and evaluate children with suspected disabilities — including those who are progressing academically but may still be eligible. This obligation exists whether or not you ask.

How to request an evaluation

Put it in writing. This is the single most consequential detail on the page.

A verbal conversation with a teacher creates no obligation and no record. A written request starts the process on the record and creates a documented date everything else is measured from — and the school's clock runs from your consent, not from the request.

Where to send it: the school principal and the district's special education director. Email works, and it gives you a timestamp — but keep a copy either way.

What happens next: the school responds, and if it agrees to evaluate, asks for your written consent. The clock generally starts when you give consent, not when you send the request. Sign and return it promptly.

Then, generally, 60 days. That's the federal standard from consent to completed evaluation. States may shorten it but cannot extend it — so check your own state's timeline, since it may be tighter.

Note the terminology varies by state. In Texas the evaluation is a Full Individual Evaluation (FIE); other states use different names. Ask what yours is called so you're using the same vocabulary as the district.

A request letter you can adapt

[Date]

[Principal's name], [School name]
[Special Education Director's name], [District]

Re: Written request for a special education evaluation — [Child's full name], DOB [date], Grade [grade]

Dear [name],

I am writing to formally request a comprehensive evaluation of my child, [name], under the Individuals with Disabilities Education Act, to determine eligibility for special education and related services.

I have the following concerns about [name]'s progress and functioning at school:

• [Specific concern, with an example. "He has not eaten lunch since September because he cannot tolerate the cafeteria."]
• [Second concern with an example]
• [Third concern with an example]

These difficulties are affecting [name]'s access to education in the following ways: [describe the impact].

I am requesting evaluation in all areas of suspected disability, including [list any that apply: academic achievement, cognitive functioning, speech and language, occupational therapy, physical therapy, social-emotional functioning, functional behavior].

Please send me the consent forms so the evaluation can begin, along with a copy of my procedural safeguards. I understand the evaluation must be completed within [your state's timeline] of my written consent.

Please confirm receipt of this request in writing.

Thank you,
[Name] · [Contact details]

Three things that make a request stronger:

Be specific about impact, not labels. "He hasn't eaten lunch in two months because he can't tolerate the cafeteria" carries more weight than "he has sensory issues."

Name the areas you want assessed. Otherwise the evaluation may cover less than you expected.

Ask for procedural safeguards in writing. You're entitled to them, and requesting them signals you know the process.

What the evaluation involves

For an IEP, the evaluation must be comprehensive, conducted by qualified professionals, and cover all areas of suspected disability. Depending on your concerns it may include cognitive assessment, academic achievement testing, speech and language assessment, occupational or physical therapy assessment, social-emotional and behavioral assessment, and classroom observation.

For a 504, evaluation requirements are less prescribed. The school must gather enough information to make an informed decision — which may mean medical documentation, teacher observations, academic records, and your input.

You can and should contribute. Provide reports from outside professionals, your own written observations, and anything documenting the difficulty. Your input is part of the evaluation.

The meeting

If your child is found eligible, a team meets to develop the plan. You are a member of that team, not an observer.

An IEP team typically includes you, a general education teacher, a special education teacher, someone qualified to interpret the evaluation results, and a district representative. Your child may attend where appropriate — and should, as they get older.

Ask for the draft in advance. Many districts arrive with one prepared. Reading it beforehand changes the meeting entirely.
Bring someone. A partner, a friend, or an advocate. Two people hear more than one.
Ask for anything unclear to be explained. Special education runs on acronyms, and nobody should be signing something they don't understand.
You don't have to sign at the meeting. You can take it away, read it, and respond.
Follow up in writing confirming what was agreed.

Your rights

Under IDEA, these are formal and enforceable:

Prior written notice — the school must tell you in writing before it proposes or refuses to change identification, evaluation, or placement, with its reasons

Access to records — you may examine all your child's educational records

Independent educational evaluation (IEE) — if you disagree with the school's evaluation, you can request an independent one, potentially at public expense

Participation — you're an equal member of the team

Consent — the school needs your written consent for initial evaluation and initial placement

Dispute resolution — mediation, state complaint, and due process hearing

Under Section 504, protections exist but are less extensive. One difference worth knowing: Section 504's regulations are less prescriptive than IDEA about formal parental participation — a 504 placement group must include people knowledgeable about the child, but the detailed parent-participation requirements IDEA sets for IEP teams don't all carry over. You remain entitled to notice and to challenge decisions.

If your request is refused

A refusal is not the end, and it must be in writing.

Ask for prior written notice. The school must explain in writing why it's refusing, what information it relied on, and what other options it considered. Frequently a refusal doesn't survive having to be justified on paper.

Request an independent educational evaluation if you disagree with the school's assessment
File a state complaint with your state education agency
Request mediation — voluntary, and often quicker than the alternative
Request a due process hearing — the formal route
Contact your state's Parent Training and Information Center. Every state has one, they're federally funded, and they're free.

Keep everything in writing. Dates, copies, and a short note after every phone call confirming what was said. It matters if things escalate, and it changes how the process runs even when they don't.

What support can look like

Accommodations — available under either plan. Extended time · preferential seating · movement breaks · written as well as verbal instructions · reduced copying from the board · notes or slides provided · assistive technology including text-to-speech and speech-to-text · a quiet space for tests · shortened assignments where volume isn't the point · permission to leave class early to avoid corridors · a discreet break card

Related services — generally IEP only. Speech-language pathology · occupational therapy · physical therapy · counseling · specialized transport

Specialized instruction — IEP only. Structured literacy for dyslexia · modified curriculum · explicit instruction in specific skills · small-group or one-to-one teaching. See the learning differences hub for what each domain involves.

Before age three

IEPs and 504 plans start at school age. Under three, a different system applies.

Every state runs a free early intervention program under IDEA Part C. You can refer your own child — no doctor's referral, no cost, regardless of income or insurance. Search "[your state] early intervention."

Between three and five, services generally transfer to your school district, which should plan that transition with you.

Frequently Asked Questions

Can my child have both?

Not simultaneously — an IEP includes accommodations, so it covers what a 504 would provide. A child may move between them as needs change, based on evaluation data.

How long does the school have?

Generally 60 days from your written consent to complete the evaluation. States may shorten this but cannot extend it, so check your own state's timeline.

How do I request an evaluation?

In writing, to the school principal and the district's special education director. A written request creates a documented date and starts a legal timeline; a verbal conversation does neither. There's a letter above you can adapt.

Does this apply outside the US?

No. IEPs and 504 plans are US systems. Other countries have their own frameworks with different names and processes.

Do I need a diagnosis to get an IEP?

No. Schools conduct their own evaluations and determine eligibility on educational need. A private diagnosis can support your case but isn't required — don't wait for an appointment to request an evaluation.

What if the school refuses to evaluate?

Ask for prior written notice explaining the refusal in writing. Then consider an independent educational evaluation, a state complaint, mediation, or a due process hearing. Your state's Parent Training and Information Center can help, free.

What's the difference between an IEP and a 504 plan?

An IEP provides specialized instruction under IDEA and requires eligibility under one of thirteen disability categories. A 504 plan provides accommodations under a civil rights law and has a broader eligibility definition. Both are legally binding.

The school suggested a 504 instead. Should I accept?

Not automatically. A 504 plan isn't a trial run for an IEP, and a school can't require you to try one first. If you think your child needs specialized instruction, request a full IDEA evaluation in writing — having a 504 doesn't prevent or delay that.

Sources

Individuals with Disabilities Education Act (IDEA), 20 U.S.C. §1400 et seq. Checked August 19, 2026.
Section 504 of the Rehabilitation Act of 1973, 29 U.S.C. §794. Checked August 19, 2026.
US Department of Education, Office for Civil Rights. Protecting students with disabilities: frequently asked questions about Section 504. Checked August 19, 2026.
US Department of Education, Office of Special Education Programs. IDEA Part B evaluation requests and timelines. Checked August 19, 2026.

Disclaimer. This page is for general educational purposes and describes the US system. It is not legal advice. Requirements vary by state, and your state's Parent Training and Information Center can provide free guidance specific to where you live.

IEPs and 504 Plans: How to Get School Support for Your Child