  We show a possibility for the charge quantization of the standard model (SM)
particles. If a global symmetry makes the three copies of a generation and
supersymmetry (SUSY) relates the Higgs boson to a lepton, all the charges of
the SM particles can be quantized through gauge-anomaly cancellation. In the
minimal model realizing the possibility, the gravitino mass around the
Planck-scale is needed to generate the SM couplings through (quantum)
supergravity. Much below the Planck-scale, the SM is obtained as the effective
theory. Interestingly, if the gaugino masses are generated through anomaly
mediation, one of the neutrino masses is predicted to be around the neutrino
oscillation scales. In an extension of the model, millicharged particles can
exist without introducing massless hidden photons.
