Reviewed by Dr. Elizabeth Long, Ph.D. — Director of Special Education, 32 years in public schools.
In Missouri, the school generally has 60 calendar days from when the school receives your written consent to complete the evaluation and decide whether your child is eligible for special education (under Missouri State Plan for Special Education, Reg. III).
What this deadline covers. This deadline covers both the evaluation and the eligibility decision.
Missouri’s rule says the 60-day timeline does not apply when there is “just cause” (such as school breaks for summer or holidays, or student illness) and that just cause is documented in the student’s record. That is broader than the federal exceptions. It does not happen on its own, so ask the school whether any just cause has been written in your child’s record.
Under federal law (20 U.S.C. § 1414(a)(1)(C)) the default is 60 calendar days from the school's receipt of consent, but Missouri's own rule controls where it sets one.
The timeline generally begins when the school receives your signed written consent — write the deadline on your calendar that day so you can tell early and calmly if things slip. Try the deadline calculator →
"Calendar days," "school days," and "business days" differ sharply — school and business days exclude weekends and breaks, so the same number can mean very different real dates. Missouri uses the unit shown above.
A ready-to-send letter that formally requests a special education evaluation and starts the timeline. Just add your details. Enter your email and it's yours.
Every state has a federally funded Parent Training and Information Center that helps families for free. In Missouri, that's Missouri Parents Act (MPACT). For the official rules, see Missouri's special education office.
Start factually: "Our evaluation was due on [date] based on Missouri's timeline — can you give me an update?" Get the response in writing, and if it keeps slipping without a plan, it's reasonable to involve the special education director and consider a state complaint. Start by assuming it was a scheduling problem, not bad faith.
State special education rules change and are periodically updated. Confirm the current figure with Missouri's Department of Education or your district before relying on any exact date. This is educational information, not legal advice.
Dr. Long's Assistant answers your specific questions in plain language — built from Dr. Long's expertise, plus state and federal law read at the source — never the open internet.
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