(a) Any income generated by an RMC that exceeds the income estimated for the income categories specified in the RMC's management contract must be excluded in subsequent years in calculating:

(b) The RMC's management contract must specify the amount of income that is expected to be derived from the project (from sources such as rents and charges) and the amount of income to be provided to the project from the other sources of income of the PHA (such as operating subsidy under this part, interest income, administrative fees, and rents). These income estimates must be calculated consistent with HUD's administrative instructions. Income estimates may provide for adjustment of anticipated project income between the RMC and the PHA, based upon the management and other project-associated responsibilities (if any) that are to be retained by the PHA under the management contract.

(c) Any revenues retained by an RMC under this section may be used only for purposes of improving the maintenance and operation of the project, establishing business enterprises that employ residents of public housing, or acquiring additional dwelling units for lower income families. Units acquired by the RMC will not be eligible for payment of operating subsidy.