The nuclide Cr48 has been produced by spallation of Ni. It decays by electron capture only with a half life of 23 hours and emits gamma rays of 116 kev (M1) and 305 kev (E2) of equal intensity, which are in coincidence. The genetic relationship with 16.2-day V48 establishes the mass assignment. The total decay energy of Cr48 can be estimated as 1.45+/-0.20 Mev. Two alternative decay schemes are proposed.