Sustaining funds shall be available to grantees under Section 10 that have met the initial proposed project objectives and can demonstrate continued financial need. These funds shall be provided by the Department for a 3-year period, subject to appropriation. Funds granted each year under this Section shall be in an amount up to 50% of a grantee’s third-year-grant funding under subsection (b) of Section 10. The Department shall adopt rules and criteria to allow grantees to apply for continued sustainability funding under this Section.