Within how many years must a parent or agency request an impartial due process hearing from the date they knew or should have known about the alleged action?

• A. 3 years
• B. 2 years
• C. 1 year
• D. 5 years

Answer: (B)

Two years from the date the parent or agency knew or should have known about the action is the deadline to request an impartial due process hearing. This two‑year limit emphasizes timely resolution and prevents old issues from dragging on. The start date uses “knew or should have known” to account for when the information became knowable, not just when the action occurred. If a filing happens after that period, it’s typically considered untimely unless the state provides an extension or a specific exception. In practice, this means act promptly, gather the needed information, and file before the two-year window closes.