(a)
There shall be allowed as a credit against the regular tax (as defined by subdivision (c) of Section 23455), for any taxable year, an amount equal to the minimum tax credit for that taxable year.
(b)
For purposes of subdivision (a), the minimum tax credit shall be determined in accordance with Section 53 of the Internal Revenue Code, except as otherwise provided in this part.
(c)
For purposes of this chapter, the amount determined under Section 53(c)(1) of the Internal Revenue Code shall be the regular tax as defined by subdivision (c) of Section 23455, reduced by the sum of the credits allowable under this part other than any credit which reduces the tax below the tentative minimum tax, as defined by Section 23455.