The format and length of the paper are as follows:
Plain paper–14 double-column pages (note: the page limit of all plain paper includes references and biographies of authors)
General paper-double-column layout 14 pages (note: the page numbers of all general papers include bibliography and author introduction).
Investigation-Tutorial Papers–18 Double-column Page
Survey-Guidance Document-Double Column Layout 18 Page
Brief contribution–8 double-column pages
Essay -8 pages, double-column layout
Comment paper–2 double-column pages
Commentary–2 pages, double column layout
Please note that double columns will be easier to translate into the final publishing format. A double-column page is defined as a 7.875-inch x 10.75-inch page with a font of 10 point, a vertical spacing of 12 point, and a margin of10.5 inch. All margins should be one inch (top, bottom, left and right). These length restrictions take into account drawings and references of reasonable size.
Please note that the two-column layout is easier to convert to the final published format. The page size of double-column layout should be 7.875" x 10.75 ",10, 12 point spacing and 1/2 inch margin. All margins should be 1 inch (top, bottom, left and right). These space restrictions take into account figures and bibliographies of reasonable size.