  This is the Snowmass2021 Energy Frontier (EF) Beyond the Standard Model (BSM)
report. It combines the EF topical group reports of EF08 (Model-specific
explorations), EF09 (More general explorations), and EF10 (Dark Matter at
Colliders). The report includes a general introduction to BSM motivations and
the comparative prospects for proposed future experiments for a broad range of
potential BSM models and signatures, including compositeness, SUSY,
leptoquarks, more general new bosons and fermions, long-lived particles, dark
matter, charged-lepton flavor violation, and anomaly detection.
