CFR /  Title 2  /  Part 1800  /  Sec. 1800.10 Acronyms.AO Announcement of OpportunityCAN Cooperative Agreement NoticeHBCU Historically Black Colleges and UniversitiesNASA National Aeronautics and Space AdministrationNFS NASA FAR SupplementNPR NASA Procedural RequirementsNRA NASA Research AnnouncementOMB Office of Management and BudgetONR Office of Naval ResearchRPPR Research Performance Progress ReportSTI Program NASA Scientific and Technical Information Program