(a) A group family leave insurance policy must establish the length of family leave benefits that are available for each covered family leave reason.
(b) The length of family leave benefits available for a covered family leave reason may not be less than two weeks during a period of 52 consecutive calendar weeks.

(c) A group family leave insurance policy may calculate the 52 consecutive calendar weeks by any of the following methods:
(1) a calendar year;
(2) a fixed period starting on a particular date, including an effective or anniversary date;
(3) the period measured forward from the insured’s first day of family leave;
(4) a rolling period measured from the insured’s first day of family leave; or
(5) any other method that is specified in the policy.