(A) A retail, food service, cleaning, hospitality, or warehouse employee, or Secretary’s designated employee, requests a shift change in writing, including through the use of sick leave, vacation leave, or any other leave policy offered by the employer. (B) A schedule change is the result of a mutually agreed upon shift trade or coverage arrangement between retail, food service, cleaning, hospitality, or warehouse employees, or Secretary’s designated employees, subject to any policy of the employer regarding required conditions for employees to exchange shifts. (C) The employer’s operations cannot begin or continue due to— (i) a threat to the property of an employee or the employer