; and (2) for at least 1 hour at the regular rate of pay of the employee involved for each day the retail, food service, cleaning, or Secretary's designated employee is given specific instructions to contact the employer of the employee involved, or wait to be contacted by the employer, less than 24 hours in advance of the start of a potential work shift to determine whether the employee must report to work for such shift. (b) Split shift pay requirement An employer shall pay a retail, food service, cleaning, or Secretary's designated employee for one additional hour at the employee's regular rate of pay for each day during which the employee works a split shift. (c) Advance notice requirement (1) Initial schedule On or before a new retail, food service, cleaning, or Secretary's designated employee's first day of work, the employer shall inform the employee in writing of the work schedule of the employee involved and the minimum number of expected work hours the employee will be assigned to work per month. (2) Providing notice of new schedules Except as provided in paragraph (3), if a retail, food service, cleaning, or Secretary's designated employee's work schedule changes from the work schedule of which the employee was informed pursuant to paragraph (1), the employer shall provide the employee with the new work schedule of the employee involved not less than 14 days before the first day of the new work schedule. If the expected minimum number of work hours that a retail, food service, cleaning, or Secretary's designated employee will be assigned changes from the number of which the employee involved was informed pursuant to paragraph (1), the employer shall also provide notification of that change, not less than 14 days in advance of the first day this change will go into effect. Nothing in this subsection shall be construed to prohibit an employer from providing greater advance notice of a retail, food service, cleaning, or Secretary's designated employee's work schedule than is required under this section.