This paper reviews the results of an acceptance test performed on a vertical shaft hammermill shredder installed at the Pompano Beach Solid Waste Reduction Facility, Pompano Beach, Florida. It was found that the shredder met the required acceptance condition, producing a refuse of at least 70 percent less than 3 in. (76 mm). The power requirements were low and the hammer wear as found to be linear with the amount of refuse processed.