When an employer is required by a Board remedial order to offer an employee employment, reemployment, or reinstatement, or to notify an employee of his or her entitlement to reinstatement upon application, the employer shall, if the employee is serving in the Armed Forces of the United States at the time such offer or notification is made, also notify the employee of his or her right to reinstatement upon application in accordance with the Military Selective Service Act of 1967, as amended, after discharge from the Armed Forces.