How to Request an FBA in Writing: A Step-by-Step Parent Guide

Your child's behavior is escalating at school — suspensions, incident reports, daily phone calls — and you want the school to figure out why this is happening and actually do something about it. You've heard about a Functional Behavioral Assessment. Now you need to make the request official.

There's a reason this should happen in writing, and it's not just about documentation. A written request creates an accountability paper trail and helps identify any timeline or formal written response that applies; it does not automatically trigger one universal legal deadline or require the school to agree.

Here's exactly how to do it.

Why Written Requests Matter

Special education law is built around documentation. A written request — via email — does several things:

• Creates a dated record that the request was made
• Helps document any applicable state or federal response timeline; there is no universal IDEA rule that every verbal request fails or every written FBA request starts the same clock
• Requests that the school formally agree or refuse in writing, including Prior Written Notice when IDEA requires it
• Gives you evidence if you later need to file a state complaint or request due process

Always use email for requests like this. It's instantly dated, delivered, and saved. A letter sent by mail is acceptable but harder to track.

What to Include in Your Written FBA Request

You don't need legal jargon. You need to be clear, specific, and documented. Here's the essential structure:

To: Your child's special education case manager (cc the principal)

Subject: Written Request for Functional Behavioral Assessment — [Child's Name]

Body:

I am writing to formally request a Functional Behavioral Assessment (FBA) for my child, [Child's Name], [date of birth / grade level], who receives special education services under an Individualized Education Program (IEP) at [School Name].

I am requesting this assessment because [child's name] has been experiencing significant behavioral challenges at school that are affecting their educational progress. Specifically: [1–3 concrete examples — e.g., "has received 8 out-of-school suspensions since September," "is frequently removed from class due to behavioral dysregulation," "has escalated to physical behaviors during transitions."]

I believe these behavioral challenges may be related to [child's name]'s disability [or: suspected disability, if undiagnosed], and I would like the team to conduct a comprehensive FBA to identify the function of the behavior and inform the development of an effective Behavior Intervention Plan.

Please confirm receipt of this request and advise me of the timeline for completing the assessment. If the district declines to initiate an evaluation or another action covered by IDEA §300.503, please provide Prior Written Notice.

Thank you, [Your Name] [Phone number]

Keep it factual and non-confrontational. You're not accusing the school of failure — you're making a formal request with legal standing.

What Happens After You Send the Request

If the school agrees: They'll notify you and begin the applicable evaluation process. If informed consent is required, you'll receive a consent form before the assessment begins. Read it carefully — it specifies what they're evaluating.

If the school refuses: If the district refuses to initiate or change an evaluation or another action covered by IDEA §300.503, it must issue Prior Written Notice. This document must state exactly what action it is refusing, why, and what evidence supports the decision. It must also describe other options considered, procedural-safeguard protections and how to obtain a copy, and other relevant factors. A verbal "we don't think that's necessary" is not a substitute for required notice. Push back in writing: "I need the Prior Written Notice of your refusal as required under IDEA §300.503."

If the school doesn't respond: Follow up in writing after 10 school days. If they continue to be unresponsive, contact your state's special education parent advisory group or file a state complaint.

Understanding Consent and Your Rights During the FBA

If the FBA is part of an initial evaluation or reevaluation, the school generally needs informed parental consent before conducting that evaluation. Ask what the proposed FBA covers and what the consent form authorizes. You have the right to:

• Ask what assessment tools will be used
• Ask who will be conducting the assessment (ideally someone with behavioral expertise, not just a classroom teacher)
• Request that the assessor observe your child in multiple settings
• Ask for a copy of the completed FBA before the IEP meeting where results are discussed

Under IDEA §300.502, if the school completes an FBA and you believe it's inadequate, you can request an Independent Educational Evaluation (IEE) at public expense — meaning the agency ensures a qualified examiner, which could be a private BCBA or behavioral psychologist, conducts the evaluation.

When the School Must Do an FBA Without Being Asked

After an MDR determines that conduct was a manifestation of the child's disability, IDEA requires the IEP Team to conduct an FBA if one was not conducted before and to implement a BIP, or review and modify an existing BIP. When behavior impedes learning, the IEP Team must consider positive behavioral interventions and supports; that duty does not automatically require an FBA in every case. Other FBA duties may arise under the IEP, state law, or policy.

If an MDR finds that the conduct was a manifestation and the school does not proactively conduct or review the required behavioral assessment or plan, request that action in writing immediately. For other situations, ask what FBA duties apply under the IEP, state law, or policy.

What a Good FBA Actually Looks Like

Sending the request is step one. When the FBA comes back, you need to evaluate whether it's actually done well. Red flags in a poor-quality FBA include:

• Vague behavioral definitions ("acts out," "disrespectful") instead of observable descriptions ("leaves assigned area, throws materials")
• No clear hypothesis about the function of the behavior
• Observation that only happened in one setting, or for less than 30 minutes
• No ABC (Antecedent-Behavior-Consequence) data collected
• Parent interview not included

A sound FBA uses multiple data sources: direct observation across settings, structured interviews with parents and teachers, and standardized rating scales. It concludes with a clear, evidence-based hypothesis about why the behavior occurs — which then drives the BIP strategies.

The Behavior Support & FBA/BIP Toolkit includes an FBA adequacy checklist that walks you through exactly what to look for when the school's assessment comes back — so you can tell whether what they've produced is defensible or whether you need to push for something better.

If Your Child Doesn't Have a Diagnosis Yet

You can still request an FBA or an evaluation. The Child Find mandate in IDEA concerns children suspected of having a disability, including those whose chronic behavioral challenges have not yet been explained by a diagnosis. If the school says "we can't do an FBA because there's no diagnosis," ask how it is addressing the suspected disability and behavioral need. An FBA may be part of an evaluation or support process, but it does not itself diagnose a child or determine eligibility.

Write the request. Track the response. Keep the email chain. This is how you build the paper trail that protects your child.