The National Science Foundation (NSF) issued a revised Proposal & Award Policies & Procedures Guide (PAPPG) that will take effect for proposals submitted on, or due on or after, January 29th, 2018. A listing of significant changes from the PAPPG 2017 version can be found here.
The following notice came directly from the National Science Foundation (NSF), and is quoted below.
We are pleased to announce that a revised version of the NSF Proposal & Award Policies & Procedures Guide (PAPPG), (NSF 18-1) has been issued.
We are pleased to announce that the Fall 2016 NSF Grants Conference Plenary (General) Sessions will be webcast live at no cost to the research community.