Haw. Rev. Stat. § 412:10-704: Retirement accounts.

A credit union may act as trustee or custodian of any form of retirement, pension, profit-sharing, or deferred income accounts authorized under federal law or the laws of this State including but not limited to individual retirement accounts, pension funds of self-employed individuals, and pension funds of a company or organization whose employees or members are eligible for membership in the credit union.