Haw. Rev. Stat. § 431:6-315: Banks, savings and loan associations, credit unions, and financial services loan companies.

(a) An insurer may invest or deposit any of its funds in checking or savings accounts, under separate certificates of deposit, or in any other form in solvent banks or trust companies.

(b) An insurer may invest any of its funds in shares or savings accounts in solvent savings and loan associations that are insured by the Federal Deposit Insurance Corporation.

(c) An insurer may deposit any of its funds in shares or share draft accounts in solvent state chartered credit unions or federally chartered credit unions.

(d) An insurer may invest or deposit any of its funds in savings accounts, in certificates of deposit, or in any other form in solvent financial services loan companies that are insured by the Federal Deposit Insurance Corporation.