Cal. Ins. Code § 12929

Irrespective of any provision in any law of this state the commissioner, pursuant to this code, has been and is authorized to correct: by amendment, by partial deletion or by partial addition, any record, finding, determination, order, rule or regulation made by him upon becoming satisfied that it is fair, just and equitable to make the correction and that any such record, finding, determination, order, rule or regulation would have included such correction except for mistake, clerical error, inadvertence, surprise or excusable neglect.

Such correction shall only be made within a period of six months following the original action.

When the facts are within the knowledge of the commissioner personally he may, upon his own motion and ex parte, enter an order making any such correction.

Otherwise he shall enter such an order of correction only after receipt and consideration of a written petition of a person described in Section 12923 or an employee of the Department of Insurance, accompanied in either case by a sworn affidavit of the facts constituting the mistake, clerical error, inadvertence, surprise or excusable neglect relied upon to justify the correction requested. In such case the order may be made ex parte.

If, within 60 days following the making of the order of correction anyone objects thereto in writing, the commissioner shall set the matter for hearing, giving the same notice thereof, if any, as was given to the proceeding which gave rise to the original record, finding, determination, order, rule or regulation.