(a) Any base period employer may, within 15 days after mailing of a notice of computation under subdivision (a) of Section 1329, submit to the department facts within its possession disclosing that the individual claiming benefits is rendering services for that employer in less than full-time work, and that the individual has continuously, commencing in or prior to the beginning of the base period, rendered services for that employer in such less than full-time work.
(b) The department shall consider facts submitted under subdivision (a) of this section together with any information in its possession and promptly notify the employer of
its ruling. If the department finds that an individual is, under Section 1252,
unemployed in any week on the basis of his or her having less than full-time work, and that the employer submitting facts under this section is a base period employer for whom the individual has continuously, commencing in or prior to the beginning of the base period, rendered services in such less than full-time work, that employer’s account shall not be charged, except as provided by Section 1026 or if the department determines pursuant to Section 1026.1 that the employer’s reserve account should not be credited, for benefits paid the individual in any week in which such wages are payable by that employer to the individual. The employer may appeal from a ruling or reconsidered ruling to an administrative law judge within 30 days after mailing or personal service of notice of the ruling or reconsidered
ruling. The 30-day period may be extended for good cause, which shall include, but not be limited to, mistake, inadvertence, surprise, or excusable neglect. The director shall be an interested party to any appeal. The department may for good cause reconsider any ruling or reconsidered ruling within either five days after an appeal to an administrative law judge is filed or, if no appeal is filed, within 30 days after mailing or personal service of the notice of the ruling or reconsidered ruling.
(c) This section shall become operative on July 1,