Outflow forces (for the combined blue and red outflow lobes) (M_⊙ km s⁻¹ yr⁻¹) versus L_bol (L_⊙) calculated using the CO J = 3–2 transition for the protostars analyzed in this paper. The upper limit toward the Class 0 protostar HOPS 340 is due to possible contamination from the PBR HOPS 341, and the upper limit toward the Class I source HOPS 223 is due to possible contamination from the PBR HOPS 397. The detection of the HOPS 401 outflow is tentative.