Haw. Rev. Stat. § 40-54: Payroll deductions authorized.

The comptroller of the State and the auditors of its political subdivisions shall, if so requested in writing by any employee or officer of the State or of any county, deduct from the compensation to the employee or officer for the employee's or officer's state or county employment membership dues, group insurance premiums, and contributions for other group benefit plans to any union or organization representing teachers, state, or county employees. After making these deductions, the comptroller or auditor shall pay the money deducted to each organization for the account of the employee or officer.