((a)) ** Requirement** The Secretary shall require at least 50 percent of the costs directly and specifically related to any project under this part to be from non-Federal sources. Such share may be in the form of cash, personnel, services, equipment, and other resources.

((b)) ** Reduction** The Secretary may reduce the amount of costs required to be provided by non-Federal sources under subsection (a) if the Secretary determines that the reduction is necessary and appropriate—

((1)) considering the technological risks involved in the project; and

((2)) in order to meet the objectives of this part.