Wisconsin Special Education Evaluation Timeline: 15-Day and 60-Day Rules

Waiting for a school evaluation is one of the most frustrating experiences in special education. You submitted the referral. Weeks passed. Then more weeks. The school said they're "in the queue" or "schedules are tight." Meanwhile, your child isn't getting services they may qualify for.

Wisconsin law doesn't permit open-ended waiting. There are two hard deadlines — and missing them is a DPI-complaint-level violation, not a minor inconvenience.

The Two Timelines You Need to Know

15 Business Days: Response to a Referral

Once a school receives a written special education referral — from a parent, teacher, physician, or anyone else — the district has exactly 15 business days to respond. That response must be one of two things:

1. A request for parental consent to conduct additional testing (meaning the district agrees more evaluation is needed)
2. A formal written notice explaining why the district believes no additional testing is necessary

"Business days" excludes weekends and school holidays, but it does not exclude days when school is in session. Staff shortages, evaluator schedules, and administrative delays do not extend this deadline.

This 15-day clock starts from the date the written referral is received. Oral requests don't start the clock. This is why your referral must always be in writing.

60 Calendar Days: Complete the Evaluation

Once you provide written consent for the evaluation, the district has 60 calendar days to complete the full evaluation and hold an IEP team meeting to review the results and determine eligibility. This is 60 calendar days — not business days — and it includes weekends.

The only exceptions Wisconsin law recognizes are very narrow: if the student enrolls in a new school district after parental consent was given, the new district has a different timeline for completing the evaluation. Otherwise, 60 days from written consent is the hard deadline.

At the end of that 60-day period, the district must have:

• Completed all assessments in all areas related to the suspected disability
• Convened the IEP eligibility team meeting
• Issued the evaluation report (ER forms)
• Determined eligibility

Missing this deadline — even by a single day — is a violation of Wisconsin Statutes § 115.777 and is subject to DPI state complaint findings of noncompliance.

How to Track the Timelines

When you submit a written referral, note the date. Count forward 15 business days. Mark that date on your calendar. If you haven't received a response by then, send a written follow-up immediately: "On [date], I submitted a written referral for a special education evaluation for my child. Fifteen business days have passed without a response as required by Wisconsin Statutes § 115.777. I am requesting a written response within 5 business days."

When you sign the consent form for evaluation, note that date. Count forward 60 days. Mark it.

What to Do When the District Misses the Deadline

Missing the 15-day referral response or the 60-day evaluation deadline is among the clearest, most documentable violations in Wisconsin special education law — which makes it one of the strongest state complaint categories.

File a DPI state complaint using Form F-2117. In the complaint, document:

• The date the written referral was submitted (or the date you signed consent)
• The applicable deadline
• The fact that no response (or no completed evaluation/IEP meeting) occurred by that deadline
• The specific statutory citation: Wisconsin Statutes § 115.777

DPI complaints resulting from missed timelines are highly winnable. Federal OSEP monitoring of Wisconsin's State Performance Plan has repeatedly flagged timeline violations as a compliance issue, meaning the DPI is primed to take these complaints seriously.

When the DPI finds a violation, it will order corrective action. For a missed 60-day evaluation deadline, this typically includes requiring the district to complete the evaluation and, if the delay caused harm, to hold an IEP meeting to consider compensatory services.

The RTI Delay Tactic and How to Counter It

One of the most common reasons Wisconsin districts miss evaluation timelines is the "wait and see" or Response to Intervention (RTI) delay tactic. District staff suggest — or insist — that the student must go through Tier 2 or Tier 3 interventions before a formal evaluation will be considered.

This is illegal. IDEA's Child Find mandate and Wisconsin Statutes § 115.777 require the district to respond to a referral regardless of whether the student is currently receiving Tier 2 interventions. The existence of an RTI program does not suspend the referral response timeline or the evaluation consent requirement. Districts cannot legally refuse to evaluate a student solely because they want to try interventions first.

If a district responds to your written referral by saying they want to try Tier 2 interventions first rather than commencing the evaluation process, their response letter is still a response to your referral — and if they haven't issued the formal consent request within 15 business days, they've missed the deadline. Document the date of their letter. File a complaint if the timeline is missed.

If they claim they'll evaluate "after interventions run their course" without a specific timeline, send a written response stating: "Under IDEA and Wisconsin Statutes § 115.777, the district cannot condition an evaluation on the completion of RTI interventions. I am renewing my written request for evaluation effective [date]."

Missed evaluation timelines are one of the most common and actionable violations in Wisconsin special education — and one of the clearest paths to compensatory services when the delay caused measurable harm. The Wisconsin IEP & 504 Advocacy Playbook includes a formal evaluation request letter, a timeline tracking worksheet, and a state complaint template specifically for timeline violations.

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