Director's Order #10A and associated Reference Manual #10A supersedes and replaces NPS Guideline #10, "Preparation of Design and Construction Drawings," (Release No. 3, August, 1995). Director's Order #10A sets forth basic requirements and can be found electronically at www.nps.gov/refdesk. The associated Reference Manual #10A provides specific information and graphic examples of drawing requirements. Reference Manual #10A is in PDF format. The Adobe Acrobat Reader is required for viewing and printing. (www.adobe.com) Printing Reference Manual 10A: The are two different sheet sizes within Reference Manual #10A - 8.5"x11" for the text and 11"x17" for drawing samples. Drawings were produced to print at 11"x17" to represent drawing standards meeting half size legibility requirements. Some printers may not have the capability of recognizing two different sheet sizes within one document, so printing Reference Manual #10A in its entirety may produce drawings at 8.5"x11". Print set-up 'fit to page' will print the entire document at 8.5"x11", including drawings. To print drawings at 11"x17", print separately, using page numbers and/or page ranges, resetting the necessary printing properties to 11"x17", landscape orientation, and short side for duplex printing.