No funds authorized to be appropriated or otherwise made available to the Department of Energy in any fiscal year after fiscal year 1997 for weapons activities may be obligated or expended for activities under the Department of Energy Laboratory Directed Research and Development Program, or under any Department of Energy technology transfer program or cooperative research and development agreement, unless such activities support the national security mission of the Department of Energy.

No funds authorized to be appropriated or otherwise made available to the Department of Energy in any fiscal year after fiscal year 1997 for defense environmental cleanup may be obligated or expended for activities under the Department of Energy Laboratory Directed Research and Development Program, or under any Department of Energy technology transfer program or cooperative research and development agreement, unless such activities support the defense environmental cleanup mission of the Department of Energy.

A national security laboratory may not use funds made available under section 6331(c) to cover the costs of general and administrative overhead for the laboratory.