A new claim or an initial additional claim for partial unemployment benefits may be filed as the department prescribes for any week only if the individual:
(1) Is a full-time worker;
(2) Is attached to a regular employer, as defined in section 383-1;
(3) Worked less than or did not work the individual's normal, customary full-time hours, as defined in section 383-1, for that week;
(4) Had no earnings or earned less than the individual's weekly benefit amount for that week; and
(5) Was unemployed due to a lack of full-time work, as defined in section 383-1, for that week.