IEP Timelines and Deadlines in Illinois

Understanding the IEP timeline deadlines in Illinois gives you one of the most powerful tools you have as a parent: the ability to know exactly what the school is required to do, and when. Whether your child is just starting the evaluation process or you're navigating annual reviews, this guide walks you through every key deadline in plain language — so nothing falls through the cracks.

Why Deadlines Matter for Your Child's IEP

An Individualized Education Program (IEP) is a legally binding document that describes your child's special education services. Under the Individuals with Disabilities Education Act (IDEA), every eligible child has the right to a Free Appropriate Public Education, or FAPE — meaning specially designed instruction and related services, at no cost to your family (20 U.S.C. § 1401(9); 34 C.F.R. § 300.17).

Deadlines are the guardrails that ensure FAPE is delivered promptly. When a school misses a timeline, it can mean your child goes weeks or months without the support they need. Knowing these dates helps you ask the right questions, respond quickly, and keep the process moving — collaboratively and constructively.

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Step 1: Requesting an Initial Evaluation

The IEP process begins with an initial evaluation — a comprehensive assessment to determine whether your child has a disability and needs special education services.

Who can request it?

• You, the parent or guardian, in writing
• The school district, with your written consent

Your right to request an evaluation is protected by federal law (20 U.S.C. § 1414(a)(1); 34 C.F.R. § 300.301). You do not need a doctor's referral, a diagnosis, or the school's permission to make this request. A written request — dated and sent to the school principal or special education coordinator — starts the clock.

Tips for your request letter:

• State clearly that you are requesting a "full and individual evaluation" under IDEA
• Describe the specific concerns you have about your child's learning, behavior, or development
• Keep a copy and note how you delivered it (email with read receipt, certified mail, or hand-delivered with a dated acknowledgment)

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Step 2: The 60-School-Day Evaluation Deadline in Illinois

This is the most critical IEP timeline deadline in Illinois, and it is stricter than the federal default.

Once the school receives your written consent to evaluate, the district must complete the initial evaluation within 60 school days (23 Ill. Admin. Code § 226.110(d)).

A few important clarifications:

• "School days" — not calendar days. This means weekends, holidays, and summer breaks do not count. A request made in May, for example, may not be completed until fall if summer break falls in between — though districts are encouraged to be proactive.
• The clock starts at consent, not at your request. After you submit your written request, the school has a reasonable window (generally up to 14 calendar days) to respond with a consent form for evaluation. The 60-school-day deadline begins once you sign that consent form.
• The evaluation must be comprehensive. It should cover all areas of suspected disability — academic, social-emotional, speech/language, motor, adaptive behavior, and more, as relevant to your child.

If you believe a deadline has been missed, ask the special education coordinator in writing for a status update and the projected completion date. Document everything.

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Step 3: The Eligibility Meeting

Within 60 school days of your signed consent, the school must not only complete the evaluation but also hold an eligibility meeting — a meeting where the team reviews the evaluation results and determines whether your child qualifies for special education services.

• If your child is found eligible, the team immediately begins developing the IEP.
• If your child is found not eligible, the school must provide you with a Prior Written Notice (PWN) — a written explanation of what they decided, why, and what information they used (20 U.S.C. § 1415(b)(3), (c)(1); 34 C.F.R. § 300.503). You have the right to disagree and request an Independent Educational Evaluation (IEE).

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Step 4: Developing and Implementing the Initial IEP

Once your child is found eligible, the IEP team — which includes you — must develop the IEP document. In Illinois, this should happen as soon as possible following the eligibility determination, and services should begin promptly.

There is no separate countdown for the initial IEP development beyond the 60-school-day window, which is why it is important to advocate for scheduling the IEP meeting immediately after or even on the same day as the eligibility meeting when possible.

Key things to watch for:

• Services must be written into the IEP before they begin — not promised verbally
• The IEP must include measurable annual goals, present levels of performance, and a clear description of services (type, frequency, duration, location)
• You must receive a copy of the IEP

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Step 5: Annual IEP Reviews

Every IEP must be reviewed at least once per year. This annual meeting — sometimes called the "annual review" — is an opportunity to:

• Review your child's progress toward their goals
• Update goals, services, and supports
• Make sure the program still meets your child's needs

Your role: You are a full member of the IEP team. You can request changes to the IEP at any time — not just at the annual review. If you have concerns between meetings, put them in writing and ask for a team meeting.

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Step 6: Reevaluation (Every Three Years)

In addition to annual reviews, every child receiving special education must be reevaluated at least every three years (sometimes called the "triennial" or "three-year reevaluation"). This ensures that the eligibility determination and the description of your child's needs stay current.

• You may request a reevaluation sooner if you believe your child's needs have significantly changed
• The school may also initiate a reevaluation with your consent
• You can agree to waive the reevaluation if both you and the school agree it is unnecessary — but you are never required to waive it

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Prior Written Notice: Your Right to Know Every Decision

Any time the school proposes or refuses to change your child's identification, evaluation, placement, or services, they must give you a Prior Written Notice (PWN). This document must explain:

• What they are proposing or refusing to do
• Why they are making that decision
• What other options they considered
• What evaluation data and information they used

This right is guaranteed under 20 U.S.C. § 1415(b)(3), (c)(1) and 34 C.F.R. § 300.503. If a school makes a change without giving you a PWN first, that is worth addressing in writing right away.

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A Quick-Reference Timeline Summary

Stage	Deadline
School responds to evaluation request	~14 calendar days (to provide consent form)
Initial evaluation completed	60 school days from signed consent (23 Ill. Admin. Code § 226.110(d))
Eligibility meeting held	Within the same 60-school-day window
Initial IEP developed	As soon as possible after eligibility
Annual IEP review	At least once every 12 months
Reevaluation	At least once every 3 years

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What To Do If a Deadline Is Missed

Most timeline issues are resolved through direct, respectful communication. Here is a practical approach:

1. Ask in writing. Email the special education coordinator: "I want to confirm the status of [child's name]'s evaluation. Our signed consent was submitted on [date]. Can you provide the expected completion date?"
2. Request a meeting if you do not get a timely response.
3. File a state complaint with the Illinois State Board of Education (ISBE) if the issue is not resolved. ISBE investigates procedural violations, including missed timelines.
4. Consult a special education advocate or attorney if the situation involves a pattern of delays, a denied evaluation, or other high-stakes decisions. You do not have to navigate that alone.

Remember: the goal is always to get your child the right support. Most schools respond well when parents are informed, specific, and collaborative.