Whether an employer's steel-toed shoe requirement is an essential function of a disabled employee's job for purposes of determining whether she is a 'qualified individual' under the ADA

QUESTIONS PRESENTED 1. Whether an _ employer’s steel-toed shoe requirement is an essential function of a disabled employee’s job for purposes of determining whether she is a “qualified individual” under the ADA where the employer had not required the disabled employee to meet that requirement for more than a decade due to her disability and, as well, had allowed a similarlysituated employee to be excepted from the requirement?