As happens every year around this time, there’s a new version of the Proposal & Award Policies & Procedures Guide, or PAPPG (NSF 18-1). This year’s iteration includes changes to the Budget Justification, new requirements in the Project Description, and templates for Collaborators & Other Affiliations Information (just to name a few). Check out a summary of the significant changes from prior versions, and clarifications found in the new PAPPG here: https://www.nsf.gov/pubs/policydocs/pappg18_1/sigchanges.jsp
The guidelines in NSF 18-1 apply for proposals submitted or due, or awards made, on or after January 29, 2018. For instance, starting today (January 29, 2018) any RAPID or EAGER proposals intended for DEB would list the NSF 18-1 PAPPG program announcement number on the proposal cover page.
The PAPPG contains the full set of general guidelines to PIs, and includes everything from proposal preparation to award reporting and close-out. Many program specific solicitations will reference the PAPPG for instructions on proposal submission, so it’s a good idea to familiarize yourself with this document and make sure that your Sponsored Projects Office is aware of this new version.