NSF has issued a revised version of the Proposal & Award Policies & Procedures Guide (PAPPG), (NSF 17-1). The new PAPPG will be effective for proposals submitted, or due, on or after January 30, 2017. Significant changes to the document are summarized at the beginning of the document. For guidance on proposals submitted or due before January 30, 2017, and awards made before January 30, 2017, continue to reference the PAPPG dated January 25, 2016.
A briefing Webinar on the new PAPPG was held November 7, 2016; slides from that Webinar are available by clicking PDF Document: HERE.