Ins. Code, § 11131

Every society transacting business in this state shall annually, on or before the first day of March, unless for cause shown such time has been extended by the commissioner, file with the commissioner, in such form as he may require, a statement under oath of its president, secretary or treasurer, or corresponding officers, of its affairs, financial condition and operations during the calendar year ending on the thirty-first day of December last preceding. Such statement shall contain items showing the reserve liabilities on all outstanding certificates classified according to the various mortality standards and interest assumptions for such certificates. The commissioner is authorized and empowered to address any additional inquiries to any such society in relation to its doings or condition, or any other matter connected with its transaction relative to the business contemplated by this chapter, and such officers of such society, as the commissioner may require, shall promptly reply in writing, and under oath, if so required to all such inquiries.