The state’s ceiling for the issuance of private activity bonds is hereby established, and it shall be determined annually by the board in accordance with the federal legislation. The amount of the state’s ceiling available at any time shall be the amount determined by the board, which results from: (a) subtracting from the state’s ceiling the amount of bonds issued during the year of calculation pursuant to notices of allocation issued during the year of calculation and with respect to which confirmation of issuance has been received by the board on or before the applicable expiration date; and (b) subtracting from the state’s ceiling the amount of notices of allocation issued during the year of calculation and which are outstanding but with respect to which the expiration date has not occurred. The state’s ceiling shall be divided annually, for purposes of administering the system into two (2) parts: the threshold portion and the undesignated portion. The board shall keep records of the amount of the state’s ceiling available at any given time, including the amount of the threshold portion and the undesignated portion available for notices of allocation at any given time, and shall make available to the public, by periodic news releases and such other means as the board may determine to be appropriate, information with respect to the amount of the state’s ceiling, the threshold portion and the undesignated portion. All applications shall apply for, and all notices of allocation shall be given in integrals of One Thousand Dollars ($1,000.00).