Evidence for volume recombination in the JET divertor has been obtained from the population ratios of the excited states of neutral hydrogen. The ratio of the Balmer series lines D_γ/D_α has been used to identify recombination at both the inner and the outer divertor target. At the outer target the onset of recombination is well correlated with the plasma detachment as observed with Langmuir probes in the divertor target. while T_e obtained from the target probe characteristics falls To～2eV, T_e from the population distribution of the excited states is 0.8±0.1 eV.
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