Cal. Unemp. Ins. Code § 1115

(a) If the director finds that the collection of any contributions will be jeopardized in any case where an employing unit is insolvent, or is delinquent in a substantial amount of contributions due under this division, or is about to discontinue business at any of its known places of business, or the business is of a temporary or seasonal nature, the director may, upon giving the employing unit 10 days’ notice pursuant to Section 1206:
1. (1) Require payment of contributions with respect to wages paid from the beginning date of the calendar quarter in which notice is given to the date designated in the notice.
2. (2) Require payment of contributions for reporting periods less than calendar quarters.
(b) As used in this section “reporting period” means that period less than a calendar quarter which is established by the director.
(c) Contributions required under subdivision (a)(1) of this section are due and payable on the date designated in the notice and shall become delinquent if not paid within 10 days of the due date.
(d) Contributions required under subdivision (a)(2) of this section are due and payable on the first day of the reporting period following the close of each reporting period and shall become delinquent if not paid within 10 days of the due date.
(e) The employing unit shall file within the time required for payment of contributions under this section a report or return as required by Section 1088, in the form and containing the information that the director prescribes.