U.S. Environmental Protection Agency Office of Mobile Sources April 1999 Updated PART5 model and input and output files used for generating heavy-duty diesel vehicle particulate inventories. Files: p5-memo.pdf or p5-memo.wpd - documents updates to the PART5 model used in the analysis. PARTUP.ZIP part5.exe - updated version of PART5 PARTIO.ZIP dies1.in - input file dies2.in - input file np10_05.out - output file np25_07.out - output file