(1) Public assistance households shall be reviewed at intervals that are coincident with redeterminations of eligibility to receive public assistance grants or benefits.

(a) Eligibility shall be redetermined whenever there is a change in the composition of the household.

(2) Non-public assistance households are to be reviewed at least every 3 months, except that the reviews may be made at longer periods, not to exceed 12 months, provided that such longer periods are based upon a determination by the certifying agency that the income and resources available to the households will probably remain essentially unchanged during the period.

(3) Households not recertified at the end of the time period shall be terminated until reapplication and redetermination of eligibility is made.

(4) Indian referral cases shall be limited to a certification period not to exceed 3 months.