  We explore a Z' boson with family-nonuniversal couplings to charged leptons.
The general effect of Z-Z' mixing, of both kinetic and mass types, is included
in the analysis. Adopting a model-independent approach, we perform a
comprehensive study of constraints on the leptonic Z' couplings from currently
available experimental data on a number of flavor-conserving and
flavor-changing transitions. Detailed comparisons are made to extract the most
stringent bounds on the leptonic couplings. Such information is fed into
predictions of various processes that may be experimentally probed in the near
future.
