Special education in Illinois runs on deadlines. Some protect the student's right to a timely evaluation; others protect the family's right to participate in decisions before they are made. For case managers, missing one is a compliance problem. For parents, knowing they exist is what turns a passive seat at the table into an informed one. This page lays out every major Illinois timeline in the order a case actually moves.
- Every Illinois deadline, explained in plain language
- Organized by phase, from request to reevaluation
- A quick-reference table you can scan
- Case managers: the Field Guide builds these deadlines into your workflow ($34)
- Parents: the IEP Toolkit gives you the letters & scripts to act when a deadline is missed ($34)
- Both include a free 20-minute consultation
Phase 1 — Requesting an Evaluation
The school must respond
When a parent requests a special education evaluation in writing, the district must respond within 10 school days — either agreeing to evaluate, or declining in writing with an explanation. A parent does not need to complete an MTSS cycle first; the request can be made at any time, in any tier.
Phase 2 — The Evaluation Window
Evaluation completed & eligibility conference held
Once a parent signs consent to evaluate, the district has 60 school days to complete all assessments and hold the IEP eligibility conference. No intervention cycle, program, or waiting period extends this window.
Phase 3 — Before the IEP Meeting
Notification of Conference
The family must receive the official Notification of Conference (ISBE Form 34-57D) — the notice stating the date, time, location, and purpose of the meeting — at least 10 days in advance.
Draft materials & agenda
The family must receive the draft IEP (except placement and service minutes), the updated progress report, procedural safeguards, and the meeting agenda at least 3 school days before the meeting. If these are not sent in time, the family can request them — and request a reschedule.
Respond to a requested meeting
If a parent requests an IEP meeting, the school must either agree to schedule it or decline in writing with an explanation, within 10 days.
Every deadline, built into your workflow
The Case Manager's Field Guide includes the full Illinois IDEA compliance reference, keyed to each step of the IEP cycle — so deadlines are tracked as part of the system, not remembered by luck. Includes a free 20-minute consultation.
Get the Field Guide — $34Phase 4 — After the Meeting
Begin implementing the IEP
The new or revised IEP must be put into effect within 10 school days of the meeting. Services and accommodations written into the document are legally required from that point forward.
Prior Written Notice
Before the district changes a student's identification, evaluation, placement, or services, the family must receive Prior Written Notice explaining the proposed action and the data behind it.
Phase 5 — Ongoing & Recurring
Annual review
The IEP team must meet at least once a year to review progress and develop a new IEP for the coming year.
Progress reporting
The school must report progress on each IEP goal at least as often as report cards are issued — using the monitoring method named in each goal, not a general grade.
Triennial reevaluation
A full reevaluation must occur at least every three years to confirm continued eligibility and review current needs.
Transition planning begins
In Illinois, the first IEP in effect when the student turns 14½ must include measurable post-secondary goals and transition services — earlier than the federal minimum of age 16.
Phase 6 — When You Disagree
Independent Educational Evaluation
When a parent disagrees with the school's evaluation and requests an Independent Educational Evaluation (IEE), the district must — without unnecessary delay — either agree to fund the IEE or file for a due process hearing to defend its own evaluation.
Quick-Reference Table
| Timeline | What Must Happen |
|---|---|
| 10 school days | School responds to a written evaluation request |
| 60 school days | Evaluation completed & eligibility conference held (from signed consent) |
| 10 days before | Notification of Conference (ISBE Form 34-57D) sent |
| 3 school days before | Draft IEP, progress report & agenda sent |
| 10 days | School responds to a parent's meeting request |
| 10 school days after | New or revised IEP implemented |
| 10 days | Prior Written Notice before any proposed change |
| Once per year | Annual review & new IEP |
| Every 3 years | Triennial reevaluation |
| Age 14½ | Transition services in the IEP |
| 5 days | Respond to an IEE request (fund or file for due process) |
This page is a plain-language reference, not legal advice. Timelines reflect Illinois implementation of IDEA; always confirm current requirements with ISBE or qualified counsel for a specific situation.
For case managers & for parents
Case managers: the Field Guide builds these deadlines into your workflow. Parents: the Parent IEP Toolkit helps you recognize when a deadline was missed and what to do about it.
Field Guide — $34 Parent Toolkit — $34