When designated by a taxpayer submitting a state income tax return to the department, the department of budget and finance shall allocate the moneys among the several funds as provided in this subsection. In the case of a joint return of a husband and wife having a state income tax refund of $10 or more, each spouse may designate that $5 be paid over as provided in this subsection. The director of taxation shall revise the individual state income tax form to allow the designation of contributions pursuant to this subsection on the face of the tax return and immediately above the signature lines. If no designation was made on the original tax return when filed, a designation may be made by the individual on an amended return filed within twenty months and ten days after the due date for the original return for such taxable year. A designation once made, whether by an original or amended return, may not be revoked.
HRS § 235-102.5