shall not be required, under this subsection, to permit an employee to earn or use more than 56 hours of such leave at a time, unless the employer chooses to set a higher limit. (2) Exempt employees (A) In general Except as provided in paragraph (3), for purposes of this subsection, an employee who is exempt from overtime requirements under section 13(a)(1) of the Fair Labor Standards Act of 1938 ( 29 U.S.C. 213(a)(1) ) shall be assumed to work 40 hours in each workweek. (B) Shorter normal workweek If the normal workweek of such an employee is less than 40 hours, the employee shall earn paid safe leave based upon that normal workweek. (3) Dates for beginning to earn paid safe leave and use Employees shall begin to earn paid safe leave under this subsection at the commencement of their employment. An employee shall be entitled to use the earned paid safe leave beginning on the 60th calendar day following commencement of the employee's employment. After that 60th calendar day, the employee may use the paid safe leave as the leave is earned. An employer may, at the discretion of the employer, loan paid safe leave to an employee for use by such employee in advance of the employee earning such safe leave as provided in this subsection and may permit use before the 60th day of employment. (4) Carryover (A) In general Except as provided in subparagraph (B), paid safe leave earned under this subsection shall carry over from one year to the next. (B) Construction This title shall not be construed to require an employer to permit an employee to earn or use more than 56 hours of paid safe leave at a given time. (5) Employers with existing policies Any employer with a paid leave policy who makes available an amount of safe paid leave that is sufficient to meet the requirements of this subsection and that may be used for the same purposes and under the same conditions as the purposes and conditions outlined in subsection (c) shall not be required to permit an employee to earn additional paid safe leave under this subsection.