74A.8  Interest rate on issue date.
  An interest rate limit, provision that no interest rate limit exists, or authorization to set interest rates, as provided by this chapter or any other law, applies to all bonds, warrants, pledge orders, certificates, obligations, or other evidences of indebtedness issued and delivered after the effective date of the provision, regardless of whether the bonds, warrants, pledge orders, certificates, obligations, or other evidences of indebtedness were authorized to be issued pursuant to election, public hearing, or otherwise before the effective date of the provision. This section operates both retroactively and prospectively.
83 Acts, ch 90, §12