What is the 60-day timeline in special education?

Under IDEA, an initial evaluation must be completed within 60 calendar days of receiving parental consent — unless the state has established its own timeframe. Many states set a shorter or differently-defined window (some use school days, some 45 or 30 days), so always check your state's regulation; the stricter deadline governs.

How often must an IEP be reviewed?

At least once every 12 months. The IEP team reviews the IEP annually to check progress and revise goals and services for the coming year. The IEP can be reviewed and amended more often if needed — the 12-month mark is the maximum interval, not a target.

What is the difference between an annual review and a triennial?

An annual review (every 12 months) revisits and updates the IEP itself. A triennial reevaluation (every 3 years) determines whether the student still has a disability and still needs special education, and what their present needs are. The triennial may or may not require new testing — the team decides what data is needed.

When is Prior Written Notice required?

Whenever the school proposes or refuses to initiate or change the identification, evaluation, educational placement, or provision of FAPE to the child. It must be given a reasonable time before the change takes effect and must explain the decision, the data behind it, and the options considered.

What happens when a student with an IEP transfers schools?

The new school must provide comparable services immediately. Within the same state, it then adopts the existing IEP or writes a new one without delay. From another state, it provides comparable services until it evaluates (if needed) and develops a new IEP. The student's right to services does not pause during the transfer.

IEP Compliance and Timelines: A Case Manager's Guide to Staying Audit-Ready

7 min read · Updated May 8, 2026

Compliance is the part of special education that nobody went into teaching for, and the part that can end a career fastest if it slips. IDEA sets a federal floor for timelines and procedures; every state layers its own, often shorter, deadlines on top. This guide covers the core federal timelines you have to hit — initial evaluations, annual reviews, triennials, Prior Written Notice, and transfers — and a simple deadline-tracking system that keeps you audit-ready without spending your planning period in a paperwork spiral. For a one-page reference, grab the free IEP Timelines Cheat Sheet.

The timelines that matter most

Under IDEA (34 CFR Part 300), a handful of deadlines drive the calendar:

Initial evaluation: completed within 60 calendar days of receiving parental consent — unless your state sets its own timeframe (many do, and many are shorter).
Initial IEP: developed within 30 calendar days of the eligibility determination.
Annual review: the IEP is reviewed and revised at least once every 12 months.
Reevaluation (triennial): at least once every 3 years, and not more than once a year unless the parent and school agree.
Transition services: in place by the first IEP that will be in effect when the student turns 16 (younger in many states).

Federal timelines are the floor. The deadlines that will actually appear in a compliance report are your state's — so know both, and calendar the stricter one.

Prior Written Notice is a deadline too

Prior Written Notice (PWN) is one of the most overlooked compliance requirements because it is not a date on a calendar — it is a trigger. The school must give parents written notice a reasonable time before it proposes or refuses to initiate or change the identification, evaluation, educational placement, or provision of services.

In practice, that means a PWN should accompany nearly every meaningful decision: proposing an evaluation, declining a parent's request for one, changing services or placement, or graduating a student off an IEP. The notice has to explain what is being proposed or refused, why, what data was used, and what other options were considered and rejected.

Missing PWN is a procedural violation that shows up constantly in due process. Build it into your workflow: whenever the team decides something, ask "does this need a PWN?" The answer is yes more often than teachers expect.

Procedural safeguards and the annual obligations

Some compliance obligations recur on a yearly cycle regardless of any single student's timeline:

Procedural safeguards notice: provided to parents once per school year, and additionally at initial referral for evaluation, upon the first state complaint or due process complaint in a year, and whenever the parent requests it.
Progress reporting: families of students with IEPs must receive progress reports as often as families of non-disabled students get report cards — concurrent with regular reporting periods.

These are easy to forget precisely because they are routine. A standing reminder at the start of each year and each grading period keeps them from slipping.

Transfers: the deadline you don't see coming

Transfer students are a common source of compliance gaps because the clock starts the moment they enroll. When a student with an IEP transfers in:

Within the same state: the new school provides services comparable to the previous IEP immediately, then either adopts the old IEP or develops a new one without delay.
From another state: the new school provides comparable services until it conducts an evaluation (if it determines one is necessary) and develops a new IEP.

"Comparable services immediately" means you cannot wait for records to arrive or for a meeting to be scheduled. The student is entitled to special education on day one. Have a quick-start process: assign a case manager, pull whatever IEP information you have, and begin comparable services while the paperwork catches up.

Build a deadline system you actually trust

You cannot hold dozens of compliance dates in your head across a full caseload. Build a system:

One master list. Every student, every key date: annual review due, triennial due, evaluation consent date and the 60-day clock, transition age.
Lead-time alerts. An annual review "due" date is useless if you learn about it the week it's due — meetings need scheduling, notices need mailing, drafts need writing. Set alerts 30 to 45 days ahead.
A weekly scan. Once a week, look at what's coming in the next 60 days. Anything that needs a meeting scheduled, get it on calendars now.
A single place for proof. When a deadline is met, the evidence (signed IEP, mailed notice, evaluation report) should live somewhere you can produce it in minutes.

Purpose-built tools like IEP Casemate compute these dates from each student's IEP and surface what's due. A shared spreadsheet works too — the system matters more than the software.

What auditors and hearing officers actually look for

A compliance review or due process hearing is, at its core, a check that the IEP was developed on time, by the right team, with proper notice, and implemented as written. The questions tend to be:

Was the evaluation completed within the timeline, with consent on file?
Was the IEP reviewed within 12 months and the triennial within 3 years?
Was PWN provided for each proposed or refused change?
Were services delivered as the IEP describes — with data to prove it?
Were procedural safeguards provided on schedule?

Notice that most of these are about documentation, not intent. A school that did the right thing but cannot prove it is in nearly the same position as one that did not. The fix is the same in every case: meet the deadline, and keep the evidence where you can find it.

Frequently asked questions

What is the 60-day timeline in special education?: Under IDEA, an initial evaluation must be completed within 60 calendar days of receiving parental consent — unless the state has established its own timeframe. Many states set a shorter or differently-defined window (some use school days, some 45 or 30 days), so always check your state's regulation; the stricter deadline governs.
How often must an IEP be reviewed?: At least once every 12 months. The IEP team reviews the IEP annually to check progress and revise goals and services for the coming year. The IEP can be reviewed and amended more often if needed — the 12-month mark is the maximum interval, not a target.
What is the difference between an annual review and a triennial?: An annual review (every 12 months) revisits and updates the IEP itself. A triennial reevaluation (every 3 years) determines whether the student still has a disability and still needs special education, and what their present needs are. The triennial may or may not require new testing — the team decides what data is needed.
When is Prior Written Notice required?: Whenever the school proposes or refuses to initiate or change the identification, evaluation, educational placement, or provision of FAPE to the child. It must be given a reasonable time before the change takes effect and must explain the decision, the data behind it, and the options considered.
What happens when a student with an IEP transfers schools?: The new school must provide comparable services immediately. Within the same state, it then adopts the existing IEP or writes a new one without delay. From another state, it provides comparable services until it evaluates (if needed) and develops a new IEP. The student's right to services does not pause during the transfer.

Stop tracking service minutes in a spreadsheet

IEP Casemategenerates a weekly schedule from each student's service requirements, surfaces a daily checklist on your phone or laptop, and computes compliance percentages automatically. Built for special education case managers, free for individual teachers to start.

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