A mutual insurance holding company shall be treated as an insurance company for the purpose of section 203(e) of the Dodd-Frank Act, 12 U.S.C. 5383(e); provided that—

(a) The company is subject to the insurance laws of the state of its domicile, including, specifically and without limitation, a statutory regime for the rehabilitation or liquidation of insurance companies that are in default or in danger of default;

(b) The company is not subject to bankruptcy proceedings under title 11 of the United States Code;

(c) The largest United States subsidiary of the company (as measured by total assets as of the end of the previous calendar quarter) is an insurance company or an intermediate insurance stock holding company; and

(d) The assets and investments of the company are limited to the securities of an intermediate insurance stock holding company, the securities of the converted mutual insurance company and other assets and securities of the type authorized for holding and investment by an insurance company domiciled in its state of incorporation.