Typical Details (TD) PDF, AutoCAD (DWG), and MicroStation (DGN) files for projects submitted on or after November 8, 2021 or that opt to comply Table of Contents PDF2021 TTM TD PDF FilesTitleSizeLoading items...AutoCAD (DWG)2021 TTM TD DWG FilesTitleSizeLoading items...MicroStation Files (DGN)2021 TTM TD DGN FilesTitleSizeLoading items...