H.R.4188: To amend the Individuals with Disabilities Education Act to permit a prevailing party in an action or proceeding brought to enforce the Act to be awarded expert witness fees and certain other expenses.

IDEA Fairness Restoration Act - Amends the Individuals with Disabilities Education Act to include expert witness fees, including the reasonable costs of any test or evaluation necessary for the preparation of the parent or guardian's case in the action or proceeding, within the definition of "attorneys' fees" that may be awarded to the prevailing party in a civil action brought under such Act.