The CatÂ® D6T Waste Handler has earned a reputation for best-in-class versatility, productivity and resale value. Landfill customers choose the D6T WH because it excels at multiple tasks from pushing trash and spreading cover to cell construction and closing. Cat waste handlers are designed and built from the frame up to handle the demands of landfill work – and they do it with industry leading comfort and reliability. The D6T WH meets U.S. Tier 4 Interim/EU Stage IIIB emission standards.