Undue hardship

An action that requires “significant difficulty or expense” in relation to the size of the employer, the resources available, and the nature of the operation. The concept of undue hardship includes any action that is unduly costly, extensive, substantial, disruptive, or would fundamentally alter the nature or operation of the business. Accordingly, whether a particular accommodation will impose an undue hardship must always be determined on a case-by- case basis.