46 C.F.R. § 249.5 – Eligibility criteria.

(a) U.S. Underwriters. Underwriters licensed to do business in a state are eligible to participate without further consideration, provided they have at least a B security rating, as published in the latest edition of A.M. Best's Insurance Reports, and the amount of insurance does not exceed the limitation on risk prescribed in § 249.8.
(b) Foreign Underwriters.
1. (1) Underwriters at Lloyds are eligible to participate without further consideration.
2. (2) Underwriters which are members of the Institute of London Underwriters (ILU) (i.e., member companies, not parents or affiliates of the member companies) are eligible to participate without further consideration, provided that the ILU member company actually underwriting the risk maintains a trust fund in the United States for the benefit of its U.S. policyholders in an amount at least equal to the minimum provided in § 249.7(d), and the amount insured does not exceed the limitation on risk prescribed in § 249.8. Parent companies or affiliates of the ILU member companies are treated as other foreign underwriters under subsection (c) of this section.
  MARAD reserves the right to review this eligibility at any time.
(c) Other Foreign Underwriters. Foreign underwriters, other than those specified in paragraphs (b) (1) and (2) of this section, may also be eligible to participate in the writing of marine hull insurance on MARAD program vessels, if approved to do so in accordance with the procedures contained in §§ 249.6 and 249.7.
(d) Documentation of eligibility. It shall be the responsibility of the vessel owner and its broker to ensure that the requirements of this section are met, and they should be able to provide MARAD, upon request, with documentation to that effect.