The National Science Foundation (NSF) has announced that Research Proposals with Subawards can now be submitted in Research.gov. The announcement from NSF includes more information how to initiate a proposal in Research.gov and for submitting feedback to NSF about the new process.
Note: Submissions for Collaborative Proposals from Multiple Organizations should still go through FastLane. (In future enhancements, Research.gov will support all Collaborative Proposals, but NSF is not there yet).
View the below resources for additional information: