  We combine experimental bounds on the electric dipole moments of the neutron and electron with cosmological limits on the relic density of a gaugino-type LSP neutralino to constrain certain CP-violating phases appearing in the MSSM. We find that in the Constrained MSSM, the phase |\theta_\mu | < \pi/10, while the phase \theta_A remains essentially unconstrained. 
CP-Violating Phases in the MSSM