California Code, Financial Code - FIN § 1873

On or before the first day of February in each year, each corporation and every foreign corporation licensed by the commissioner to transact the business of such a corporation in this state, shall make a written report to the commissioner which shall contain a statement of its condition on the morning of the first day of January in that year and shall be in the form and contain the matters prescribed by the commissioner.  The commissioner may, however, in his or her discretion, accept from a corporation, which has branches in a foreign country or countries, a report containing a statement of its condition as of a date not later than the first day of January and not earlier than the first day of November in the preceding year.  Every report shall be verified by the oaths of the two principal officers in charge of the affairs of the corporation or foreign corporation at the time of the verification, which shall state that the report is true and correct in all respects to the best of the knowledge and belief of the persons verifying it, and that the usual business of the corporation or foreign corporation has been transacted at the location required by this article and not elsewhere.