The Secretary shall consider, under subsections (b) and (c), work carried out before November 17, 1986, by non-Federal interests on a project for flood control, if the non-Federal interests apply to the Secretary for consideration of such work not later than March 31, 1987. The Secretary shall make determinations under subsections (b) and (c) with respect to such work not later than 6 months after guidelines are issued under subsection (a).