Employees cannot be forced to participate -- or not participate -- in a religious activity as a condition of employment. Employers must reasonably accommodate employees' sincerely held religious practices unless doing so would impose an undue hardship on the employer. A reasonable religious accommodation is any adjustment to the work environment that will allow the employee to practice his religion. An employer might accommodate an employee's religious beliefs or practices by allowing: flexible scheduling, voluntary substitutions or swaps, job reassignments and lateral transfers, modification of grooming requirements and other workplace practices, policies and/or procedures.