(1) Every domestic carrier shall, on or prior to the filing date of March 1st, prepare and submit to the commissioner a report of its RBC levels as of the end of the calendar year just ended, in a form and containing such information as is required by the RBC instructions. In addition, every domestic carrier shall file its RBC report:

(a) With the NAIC in accordance with the RBC instructions; and
(b) With the insurance commissioner in any state in which the carrier is authorized to do business, if the insurance commissioner has notified the carrier of its request in writing, in which case the carrier shall file its RBC report not later than the later of:
1. (i) Fifteen days from the receipt of notice to file its RBC report with that state; or
2. (ii) The filing date.

(2) A carrier's RBC shall be determined in accordance with the formula set forth in the RBC instructions. The formula shall take into account (and may adjust for the covariance between):

(a) The risk with respect to the carrier's assets;
(b) The risk of adverse insurance experience with respect to the carrier's liabilities and obligations;
(c) The interest rate risk with respect to the carrier's business; and
(d) All other business risks and such other relevant risks as are set forth in the RBC instructions; determined in each case by applying the factors in the manner set forth in the RBC instructions.

(3) An excess of capital over the amount produced by the risk-based capital requirements contained in RCW 48.43.300 through 48.43.370 and the formulas, schedules, and instructions referenced in RCW 48.43.300 through 48.43.370 is desirable in the business of insurance. Accordingly, carriers should seek to maintain capital above the RBC levels required by RCW 48.43.300 through 48.43.370. Additional capital is used and useful in the insurance business and helps to secure a carrier against various risks inherent in, or affecting, the business of insurance and not accounted for or only partially measured by the risk-based capital requirements contained in RCW 48.43.300 through 48.43.370.

(4) If a domestic carrier files an RBC report that in the judgment of the commissioner is inaccurate, then the commissioner shall adjust the RBC report to correct the inaccuracy and shall notify the carrier of the adjustment. The notice shall contain a statement of the reason for the adjustment.