CP-violating but P-preserving electromagnetic couplings of the W± and Z0

We show that the electroweak gauge bosons W± and Z0 can have CP-violating (but P-preserving) couplings to the photon and Z0 boson that are very weakly bounded by current limits on fermion electric dipole moments, and by present data from the CERN e+e- collider LEP. They nevertheless can be large enough to be detectable, for instance, in gauge-boson pair production at LEP 200.