As of October 10, 2025, NSF and the USDA will join DOE in requiring the mandatory research security training be completed before a proposal submission can occur. The CU proposal analyst must certify that all individuals identified as senior/key personnel have completed the requisite research security training. Acceptable training for this can be the 1-hour CU course , or the 4-hour NSF training module.
See this post for additional information:
https://ciresblogs.colorado.edu/cires-admin/2025/05/14/new-research-security-training-requirements-for-federal-grant-proposal-submissions/