Notwithstanding any other provisions of this chapter, a school district otherwise eligible to receive a conditional apportionment under Chapter 8 (commencing with Section 16000) of this part may apply for an adjustment of annual repayment obligations under this chapter.

The board may require any information that is necessary to determine the number of units of estimated average daily attendance for which the district would have been eligible to construct school facilities under this chapter, if the conditional apportionment

had been made and had become final. The units shall be known as “eligible attendance units.” The board shall then determine an “eligible facilities cost” by multiplying the number of the eligible attendance units by the average cost of housing elementary or high school pupils as set forth in the latest report to the Legislature required under Section 16098.

In any fiscal year in which the school district is, in the judgment of the board, operating sufficient year-round classes to provide housing for the eligible attendance units, the Director of General Services shall add to the amount which he or she is required to certify to the Controller under Section 15730 an amount equal to one-twentieth of such eligible facilities costs.

The additional amount so certified shall be considered for all purposes of this article as eligible bonded debt service.