  Standard model mixing and CP violation are expected to be small in the charm
sector. Some argue that only in the presence of new physics do we currently
expect to observe these effects. Fermilab experiment E791 has the largest
sample of reconstructed charm decays recorded to date. We have made an
exhaustive search for D0 D0-bar mixing and CP violation in this data. We
present the charm mixing limits on the mixing parameter r_mix using hadronic
and semileptonic decays, and also present preliminary limits on the CP
asymmetry parameter, A_CP, for Cabibbo suppressed decays.
