Charge symmetry tests: Final charge symmetry violation results from IUCF

In the context of ‘‘Charge Symmetry Tests’’, we report final results from an n‐p scattering experiment completed at IUCF providing definitive evidence for charge‐symmetry‐breaking (CSB) in the strong interaction. Our results are well described by meson‐exchange calculations which include ρ−ω mixing in addition to the n‐p mass difference effect on one‐boson exchange.