; and (C) in the event of a denial, stating the reason for denial, including whether any such reason is a bona fide business reason. (3) Information If information provided by the employee making a request under this section requires clarification, the employer shall explain what further information is needed and give the employee reasonable time to produce the information. (c) Requests related to caregiving, enrollment in education or training, or a second job If an employee makes a request for a change in the terms and conditions of employment as set forth in subsection (a) because of a serious health condition of the employee, due to the employee’s responsibilities as a caregiver, or due to the employee's enrollment in a career-related educational or training program, or if a part-time employee makes a request for such a change for a reason related to a second job, the employer shall grant the request, unless the employer has a bona fide business reason for denying the request. (d) Other requests If an employee makes a request for a change in the terms and conditions of employment as set forth in subsection (a), for a reason other than those reasons set forth in subsection (c), the employer may deny the request for any reason that is not unlawful. If the employer denies such a request, the employer shall provide the employee with the reason for the denial, including whether any such reason is a bona fide business reason. 4. Requirements for reporting time pay, split shift pay, and advance notice of work schedules for retail, food service, cleaning, or Secretary's designated employees (a) Reporting time pay requirement An employer shall pay a retail, food service, or cleaning employee or a designated employee, in an additional occupation designated by the Secretary, under section 8(a)(2) as appropriate for coverage under this Act (referred to in this Act as a retail, food service, cleaning, or Secretary's designated employee )— (1) for at least 4 hours at the regular rate of pay of the employee involved for