(a) Project budgets may be changed, within limits established by the department.
(b) Funds allocated to a region shall remain available for funding applications within the region for a time period or dollar limit to be specified by department regulations. The department may designate a time period or dollar limit for the distribution of capital development funds that is different from the time period or dollar limit for the distribution of noncapital development funds. When the designated local board is unable to distribute funds during the time period designated by the department, the funds shall revert to the fund for distribution.