Solitary Confinement Study and Reform Act of 2022 This bill establishes the National Solitary Confinement Study and Reform Commission to study the impact of solitary confinement on governments, communities, and social institutions. Additionally, the bill (1) directs the Department of Justice to publish national standards to reduce solitary confinement in correctional facilities; and (2) authorizes grants for community-based prevention and education programs, community-based mental health care, or community-based drug treatment or harm reduction.