Abstract
Parity-even time reversal violation (TRV) in the nucleon-nucleon interaction is reconsidered. The TRV $\ensuremath{\rho}$-exchange interaction on which recent analyses of measurements are based is necessarily also charge symmetry breaking (CSB). Limits on its strength ${\overline{g}}_{\ensuremath{\rho}}$ relative to regular $\ensuremath{\rho}$ exchange are extracted from recent CSB experiments in neutron-proton scattering. The result ${\overline{g}}_{\ensuremath{\rho}}\ensuremath{\le}6.7\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ (95% C.L.) is considerably lower than limits inferred from direct TRV tests in nuclear processes. Properties of ${a}_{1}$ exchange and limit imposed by the neutron electric dipole moment are briefly discussed.
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