The Search for the Neutron Electric Dipole Moment

A non-zero neutron Electric Dipole Moment (EDM) would indicate a violation of Time Reversal Symmetry and, via the CPT Theorem, also a violation of Charge Conjugation/Parity (CP) symmetry. New experiments are underway to increase the sensitivity to a neutron EDM to $\sim $ 1 x 10$^{-28}$ e-cm, representing an improvement over the existing limits of about two orders-of-magnitude. A positive result from these experiments would imply that new sources, beyond our present Standard Model, of CP violation must exist. I will discuss the progress and plans for a new neutron EDM experiment to be carried out at the Fundamental Neutron Physics Beamline at the Spallation Neutron Source.