If you are providing more than one file, they must be uploaded together to a maximum of 10 files. Adding files separately will overwrite any already uploaded. Files should not exceed 10mb individually or 20mb for the form in total.
(Valid file extensions are .doc, .docx, .jpeg, .jpg, .pdf, .png, .xls, .xlsx, .cpg, .dbf, .prj. sbn, .sbx, .shp, .shx, .tiff.)