NSF has recently put out upcoming changes to their Proposal and Awards Policies and Procedures Guide (PAPPG). Among those changes, NSF is designating the Science Experts Network Curriculum Vitae as an approved format.
Additionally starting with the next iteration of the PAPPG, only Biographical Sketches generated through an NSF approved format will be accepted.
For more information as well as useful links please read the NSF announcement found here: https://www.research.gov/research-portal/appmanager/base/desktop?_nfpb=true&_pageLabel=research_node_display&_nodePath=/researchGov/Generic/Common/BioSketchAdvisory.html