  Detecting dark matter directly using sensitive underground detectors is one
of the most promising ways to address the question of what is dark matter. The
next generation underground experiments will search for dark matter in two
directions. One is to use larger target mass detectors to further probe smaller
cross sections in the WIMP parameter space and the other is to probe lower mass
dark matter which requires new technologies with extremely low threshold. Once
dark matter is detected, experiments with directional sensitivities and
experiments with longer exposure and larger target masses are needed for the
time-dependent signatures, such as annual modulations, to verify their cosmic
origin and to further study their properties. This report covers the
underground facilities need for the next generation dark matter search
experiments with noble liquids, cryogenic bolometers and other technologies.
