Space Weather: An Overview of Policy and Select U.S. Government Roles and Responsibilities [Updated January 6, 2020] [open pdf - 2MB]
From the Introduction: "Space weather refers to the dynamic conditions in Earth's outer space environment. This includes conditions on the Sun, in the solar wind, and in Earth's upper atmosphere. Space weather phenomena include  solar flares or periodic intense bursts of radiation from the sun caused by the sudden release of magnetic energy,  coronal mass ejections composed of clouds of solar plasma and electromagnetic radiation, ejected into space from the sun,  high-speed solar wind streams emitted from low density regions of the sun, and  solar energetic particles or highly-charged particles formed at the front of solar flares and coronal mass ejections. [...] This report provides an overview of federal government policy developed under the existing legislative framework, and describes the specific roles and responsibilities of select federal departments and agencies responsible for the study and mitigation of space weather hazards."
CRS Report for Congress, R46049
Congressional Research Service: https://crsreports.congress.gov/