L

Lab

• Ideas Lab: Practical Fully-Connected Quantum Computer Challenge (PFCQC)

Labs

• Harnessing the Data Revolution (HDR): Institutes for Data-Intensive Research in Science and Engineering - Ideas Labs (I-DIRSE-IL)

Land

• Geomorphology and Land Use Dynamics

Language

• Linguistics: Dynamic Language Infrastructure-Doctoral Dissertation Research Improvement Grants (DLI-DDRI)
• NSF Dynamic Language Infrastructure - NEH Documenting Endangered Languages (DLI-DEL)

Languages

• NSF Dynamic Language Infrastructure - NEH Documenting Endangered Languages (DLI-DEL)

LAOF

• Lower Atmosphere Observing Facilities (LAOF)

Large-Scale

• Climate and Large-Scale Dynamics (CLD)

Law

• Law & Science (LS)

Lead

• NSF Engineering - UKRI Engineering and Physical Sciences Research Council Lead Agency Opportunity (ENG-EPSRC)
• NSF-DFG Lead Agency Activity in Electrosynthesis and Electrocatalysis (NSF-DFG EChem)

Leadership

• GEO Opportunities for Leadership in Diversity (GOLD)

Leading

• Leading Engineering for America's Prosperity, Health, and Infrastructure (LEAP HI)

Leap

• Enabling Quantum Leap: Convergent Accelerated Discovery Foundries for Quantum Materials Science, Engineering and Information (Q-AMASE-i)
• Enabling Quantum Leap: Quantum Idea Incubator for Transformational Advances in Quantum Systems (QII - TAQS)
• Leading Engineering for America's Prosperity, Health, and Infrastructure (LEAP HI)
• Quantum Leap Challenge Institutes (QLCI)

Learners

• Inclusion Across the Nation of Communities of Learners of Underrepresented Discoverers in Engineering and Science (NSF INCLUDES)
• Inclusion across the Nation of Communities of Learners of Underrepresented Discoverers in Engineering and Science (NSF INCLUDES) (NSF INCLUDES)

Learning

• Advancing Informal STEM Learning (AISL)
• Multimodal Sensor Systems for Precision Health Enabled by Data Harnessing, Artificial Intelligence, and Learning (SenSE)
• NSF-Simons Research Collaborations on the Mathematical and Scientific Foundations of Deep Learning (MoDL)
• NSF/Intel Partnership on Machine Learning for Wireless Networking Systems (MLWiNS)
• National STEM Education Distributed Learning (NSDL)
• Real-Time Machine Learning (RTML)
• The Science of Learning and Augmented Intelligence Program (SL)

Life

• NSF/CASIS Collaboration on Tissue Engineering and Mechanobiology on the International Space Station (ISS) to Benefit Life on Earth
• NSF/CASIS Collaboration on Transport Phenomena Research on the International Space Station (ISS) to Benefit Life on Earth (NSF-ISS)
• Origin of Life
• Understanding the Rules of Life: Building a Synthetic Cell
• Understanding the Rules of Life: Epigenetics
• Understanding the Rules of Life: Microbiome Theory and Mechanisms (URoL:MTM)

Ling-DDRI

• Linguistics Program - Doctoral Dissertation Research Improvement Grants (Ling-DDRI)

Linguistics

• Linguistics
• Linguistics Program - Doctoral Dissertation Research Improvement Grants (Ling-DDRI)
• Linguistics: Dynamic Language Infrastructure-Doctoral Dissertation Research Improvement Grants (DLI-DDRI)

Long

• Long Term Ecological Research (LTER-NCO)
• Long Term Research in Environmental Biology (LTREB)

Long-Term

• Long-Term Ecological Research (LTER)
• Long-Term Ecological Research (LTER):

Louis

• Louis Stokes Alliances for Minority Participation

Low

• Metabolomics for a Low Carbon Society (METABOLOMICS)

Low-Temperature

• Geobiology and Low-Temperature Geochemistry

Lower

• Lower Atmosphere Observing Facilities (LAOF)

LS

• Law & Science (LS)

LTER

• Long-Term Ecological Research (LTER)

LTER-NCO

• Long Term Ecological Research (LTER-NCO)

LTREB

• Long Term Research in Environmental Biology (LTREB)