(a) If the assuming insurer is a single insurer, the trust must:
(1) consist of a trusteed account representing the assuming insurer’s liabilities attributable to business written in the United States; and
(2) include a trusteed surplus of at least $20 million, except after the assuming insurer has permanently discontinued underwriting new business secured by the trust for not less than three calendar years, the insurance commissioner or other chief insurance regulatory official with principal regulatory oversight over the trust may authorize a reduction in the required trusteed surplus, but only after a finding, based on an assessment of the risk, that the new required surplus level is adequate for the protection of United States ceding insurers, policyholders, and claimants in light of reasonably foreseeable adverse loss development.
(a-1) The risk assessment described by Subsection (a)(2) may involve an actuarial review, including an independent analysis of reserves and cash flows, and must consider all material risk factors, including when applicable, the lines of business involved, the stability of the incurred loss estimates, and the effect of the surplus requirements on the assuming insurer’s liquidity or solvency. The minimum required trusteed surplus may not be reduced to an amount less than 30 percent of the assuming insurer’s liabilities attributable to reinsurance ceded by United States ceding insurers.

(b) If the assuming insurer is a group of insurers that includes an unincorporated individual insurer:
(1) the trust must:
(A) consist of a trusteed account representing the group’s liabilities attributable to business written in the United States; and
(B) include a trusteed surplus of at least $100 million; and
(2) the group shall make available to the department an annual certification by the group’s domiciliary regulator and its independent public accountants of each underwriter’s solvency.
(c) If the assuming insurer is a group of incorporated insurers under common administration that has continuously engaged in the business of insurance for at least three years, is under the supervision of the Department of Trade and Industry of the United Kingdom, and has an aggregate policyholders’ surplus of $10 billion:
(1) the trust must:
(A) consist of a trusteed account representing the group’s several liabilities attributable to business written in the United States under reinsurance contracts issued in the name of the group; and
(B) include a trusteed surplus of not less than $100 million held jointly for the benefit of United States insurers that have ceded business to any member of the group; and
(2) each member of the group shall make available to the department an annual certification by the member’s domiciliary regulator and its independent public accountants of each member’s solvency.