  This is the report of the Intensity Frontier Charged Lepton Working Group of
the 2013 Community Summer Study "Snowmass on the Mississippi", summarizing the
current status and future experimental opportunities in muon and tau lepton
studies and their sensitivity to new physics. These include searches for
charged lepton flavor violation, measurements of magnetic and electric dipole
moments, and precision measurements of the decay spectrum and parity-violating
asymmetries.
