Nonrefundable Credit. A person may take the user fee imposed under 4 CMC § 1421 as a nonrefundable credit against the tax imposed on Commonwealth source income under Subtitle A of the NMTIT pursuant to chapter 7 of this division [4 CMC § 1701 et seq.]. No such credit shall be allowed for any amount deducted in determining taxable income under the NMTIT as shown on the taxpayer’s return. Source: PL 9-57, § 2; superseded by PL 9-59, § 2.