Once all observations of a proposal have passed the formal checks, a small pop-up window will appear with which the scientific justification can be uploaded from the user's site. The allowed maximum overall volume of the scientific justification, including figures, tables etc. is 4 pages. BEFORE including a file, please read the AO-1 Policies and Procedures, in which instructions are provided. XRPS does not contain any mechanism to check whether an included file is a formally valid scientific justification (or even a postscript file).