Charged pion production via charged-current nu[subscript]μ interactions on plastic scintillator (CH) is studied using the MINERvA detector exposed to the NuMI wideband neutrino beam at Fermilab. Events with hadronic invariant mass W<1.4 GeV and W<1.8 GeV are selected in separate analyses: the lower W cut isolates single pion production, which is expected...