Unless the Funding Opportunity Announcement instructs otherwise, the appendix does not have a page limit. However, we do limit the number of PDF attachments to 10. If you need more than 10 appendix attachments, then the remaining information should be combined in attachment #10. We also limit what may be included in the appendix. For more details, see the SF424 (R&R) Application Guide’s pp. I-118, I-119.