  This reports summarizes the activities of the Charged Lepton Flavor Violation
group of the 2022 Community Summer Study. Charged lepton flavor violating
reactions provide unique information on the scale and dynamics of flavor
generation, and more generally a wide range of New Physics scenarios,
complementing direct searches performed at collider and neutrino physics
experiments. These processes already probe mass scales up to thousands of TeV,
and an observation would be an unambiguous signature of physics beyond the
Standard Model. We review the current status and future experimental
opportunities in muon, tau and heavy state transitions, with a focus on US-led
initiatives.
