When an employee suffers from a physical or mental impairment that substantially limits her in one or more major life activities, what form must a request for accommodation take, i.e., what information must an employee provide to her employer to trigger an employer's obligation to engage in the interactive process and provide a reasonable accommodation to that employee under the ADA, the Rehab Act, and the PDA.

When must an employee provide information to trigger an employer's obligation to provide reasonable accommodation under the ADA, Rehab Act, and PDA?