Lunar regolith simulants are required to fully test technologies under relevant lunar surface conditions and will be an integral part of our return to the Moon. Since the testing procedures developed by the community may have a range of desired simulation characteristics, a variety of lunar simulants are required to completely replicate various characteristics of the lunar regolith (e.g., geochemical, geophysical, geotechnical properties, etc.). The Lunar Simulant Assessments provide an independent evaluation of lunar regolith simulants to help inform decisions of the community in selecting lunar simulants for experiments and/or testing.