At least once in each 5-year period, but not more frequently than once in each 3-year period, the Board shall:

(a) Review, based on a three-year average, the geographical distribution in the United States of the production of honey and the quantity or value of the honey and honey products imported into the United States; and

(b) If warranted, recommend to the Secretary the reapportionment of the Board membership to reflect changes in the geographical distribution of the production of honey and the quantity or value of the honey and honey products imported into the United States.