(d) To assure the continued operation and solvency of the agency for the carrying out of the public purposes of this article, provision is made in paragraph (a) of this subdivision for the accumulation in the capital reserve fund of an amount equal to the maximum amount of principal and interest maturing and becoming due and sinking fund payments required to be made in any succeeding calendar year on all bonds of the agency then outstanding other than state university construction bonds, equity bonds, non-profit project bonds, hospital and nursing home project bonds, urban rental project bonds, health facilities bonds, youth facilities project bonds, community mental health services and developmental disabilities services project bonds, community senior citizens services project bonds, mental hygiene improvement bonds and revenue housing bonds and bonds and notes for the housing program. In order further to assure such maintenance of the capital reserve fund, there shall be annually apportioned and paid to the agency for deposit in the capital reserve fund such sum, if any, as shall be certified by the chairman of the agency to the governor and director of the budget as necessary to restore the capital reserve fund to an amount equal to the maximum amount of principal and interest maturing and becoming due and sinking fund payments required to be made in any succeeding calendar year on the bonds of the agency then outstanding other than state university construction bonds, equity bonds, non-profit project bonds, hospital and nursing home project bonds, urban rental project bonds, health facilities bonds, youth facilities project bonds, community mental health services and developmental disabilities services project bonds, community senior citizens services project bonds, mental hygiene improvement bonds and revenue housing bonds and bonds and notes for the housing program. The chairman of the agency shall annually, on or before December first, make and deliver to the governor and director of the budget his certificate stating the amount, if any, required to restore the capital reserve fund to the amount aforesaid and the amount so stated, if any, shall be apportioned and paid to the agency during the then current state fiscal year. The principal amount of bonds secured by the capital reserve fund to which state funds are apportionable pursuant to this paragraph shall be limited to the total amount of bonds and notes outstanding on the effective date of this act, plus the total amount of bonds and notes contracted after the effective date of this act to finance projects in progress on the effective date of this act as determined by the New York state public authorities control board created pursuant to section fifty of the public authorities law whose affirmative determination shall be conclusive as to all matters of law and fact solely for the purposes of the limitations contained in this paragraph, but in no event shall the total amount of bonds so secured by such a capital reserve fund or funds exceed three hundred thirty-eight million dollars, excluding bonds issued to refund such outstanding bonds until the date of redemption of such outstanding bonds. As outstanding bonds so secured are paid, the amount so secured shall be reduced accordingly but the redemption of such outstanding bonds from the proceeds of refunding bonds shall not reduce the amount so secured.