Texas Special Education Evaluation Timeline: The 15-45-30 Rule Explained

Parents often discover, months after the fact, that the district had a legal deadline to evaluate their child — and blew past it. The frustrating part is not just the delay. It is that the district never mentioned the clock was running, and the parent never knew to ask.

Texas has some of the most specific evaluation timelines in the country. They are codified in Texas Administrative Code §89.1011, and they are not suggestions. Understanding the sequence — what triggers each deadline, and when each clock actually starts — is the difference between waiting indefinitely and forcing the district to act.

Step One: Submit a Written Request

Everything begins with a written request. A verbal request — a phone call, a conversation in the hallway after pickup — does not trigger any legal timeline. The clock does not start until the district receives a written request for evaluation.

Your request should be addressed to the campus principal or the district's director of special education. It should state that you suspect your child has a disability affecting their educational performance and that you are formally requesting a Full Individual and Initial Evaluation (FIIE). Cite TAC §89.1011(b) in your letter. This reference signals to the district that you understand the timeline you are invoking.

Send the letter by email so you have a timestamp, and follow up with a printed copy delivered by hand if possible. Keep a copy for yourself.

Step Two: The 15-School-Day Response Window

Once the district receives your written request, it has exactly 15 school days to respond. In that window, the district must do one of two things:

1. Provide Prior Written Notice (PWN) of its proposal to conduct the evaluation and send you a Consent to Evaluate form, or
2. Provide written documentation refusing the evaluation and explaining the legal basis for the refusal

If the district refuses, it must tell you in writing why it is declining. That written refusal is important — it can be the basis for a state complaint filed with the TEA.

Step Three: Sign the Consent Form to Start the 45-Day Clock

This is the step most parents do not realize is pivotal. The 45-school-day evaluation clock does not begin when you submit your request. It does not begin when the district sends you the consent form. It begins the day you sign and return the Consent to Evaluate form.

Districts know this. Some will delay getting the consent form to you, because every day before you sign is a day the clock is not running. If the district does not provide the Consent to Evaluate form within its 15-school-day window, that is a violation of TAC §89.1011. Document it and note the date the 15 days expired.

Once you receive the form, sign it and return it promptly — and keep a copy with the date you returned it. From that date, count 45 school days. That is the district's legal deadline to complete the FIIE.

The 45-School-Day Evaluation Window

Under TAC §89.1011, the district has 45 school days from the date it receives your signed consent to complete the Full Individual and Initial Evaluation (FIIE) and deliver the written report to you.

The FIIE is a comprehensive, multi-disciplinary assessment. It must evaluate all areas related to the suspected disability using a variety of assessment tools — not a single test score. In Texas public schools, these evaluations are typically conducted by Licensed Specialists in School Psychology (LSSPs) and Educational Diagnosticians using instruments such as the WISC-V for cognitive assessment and the BASC-3 for behavioral and emotional functioning.

There is only one permitted extension to the 45-day timeline: if your child is absent from school for three or more consecutive days during the evaluation period, the deadline extends by the exact number of days the child was absent. That is the only legal extension. Staff shortages, scheduling conflicts, and end-of-year calendars do not pause the clock.

One important end-of-year exception: If you sign the consent form between 35 and 45 school days before the last instructional day of the year, the FIIE report deadline extends to June 30, and the ARD meeting must be held by the 15th school day of the following fall term.

Step Four: You Must Receive the Report Five School Days Before the ARD

Once the FIIE is completed, the district must provide you with a copy of the written report as soon as possible, but no later than five school days before the initial ARD committee meeting.

This five-day buffer is not a courtesy — it is a legal requirement specifically so you have time to read complex psychological data, consult with an advocate, and arrive at the ARD prepared to participate meaningfully. If the district hands you a report in the parking lot before walking you into the meeting room, you have grounds to refuse to proceed and request the meeting be rescheduled.

Step Five: The 30-Calendar-Day ARD Window

After the FIIE is completed, the district has 30 calendar days (not school days) to convene the initial ARD committee meeting. At that meeting, the committee will review the evaluation findings, determine whether your child is eligible for special education services, and if so, develop the initial IEP.

The 30-day clock runs from the date the FIIE report is completed — not the date you receive it, and not the date of the ARD meeting itself.

What to Do When Deadlines Are Missed

If the district misses any of these deadlines, you have a concrete, documentable procedural violation to work with. Texas parents have two primary options:

State complaint to the TEA. A special education complaint filed with the TEA Office of Special Populations is free, does not require an attorney, and specifically addresses procedural violations like missed evaluation timelines. The TEA must issue a written decision within 60 calendar days. If it finds the district violated the timeline, it can order corrective action — including requiring the evaluation to be completed immediately.

Prior Written Notice demand. If the district has not responded to your evaluation request within 15 school days, send a follow-up letter citing TAC §89.1011 and demanding a PWN explaining why no response was provided. A documented demand letter creates a paper trail that strengthens any future complaint.

The Texas IEP and 504 Advocacy Playbook includes a fill-in evaluation request template that cites the correct TAC sections, along with a timeline tracking worksheet so you know exactly when each deadline expires from the day you submit your request.

Why the Timeline Matters So Much in Texas

Texas added 77,404 new special education students to its rolls in a single year following the removal of the illegal 8.5% enrollment cap. Major districts are managing severe backlogs. Austin ISD was placed under state conservatorship specifically because of a backlog of at least 800 initial evaluations and 1,600 re-evaluations in violation of Child Find obligations.

Districts experiencing overload will sometimes rely on parents not knowing their rights to effectively manage the queue. Understanding the 15-45-30 timeline means you know exactly when the district is late and exactly what your legal options are when that happens.

The timeline is not complicated once you see it laid out. The complexity is in knowing which clock starts each phase — and that knowledge alone puts you in a fundamentally different position than the parent sitting across from the district's diagnostician without it.

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