(a) DOE may transfer DOE-owned real property by sale or lease at closed or downsized defense nuclear facilities, for the purpose of permitting economic development.

(b) DOE may transfer, by lease only, improvements at defense nuclear facilities on land withdrawn from the public domain, that are unneeded, temporarily underutilized, or underutilized, for the purpose of permitting economic development and for facilitating local reuse or redevelopment.