However, if moneys in such fund at any time are less than the capital reserve fund requirement established for such fund as provided in this section, the authority shall not use such moneys for any optional purchase or optional redemption of such bonds. Any income or interest earned by, or increment to, any capital reserve fund due to the investment thereof may be transferred by the authority to other funds or accounts of the authority to the extent such transfer does not reduce the amount of such capital reserve fund below the capital reserve fund requirement for such fund.
However, in computing the annual debt service for any calendar year, bonds deemed to have been paid in accordance with the defeasance provisions of the resolution of the authority authorizing the issuance thereof shall not be included in bonds outstanding on such date of computation.
IC 5-20-1-16