So, the ISS orbit crosses the South American Magnetic Anomaly sometimes which does give them a bit of inner Van Allen belt radiation sometimes. But they're sti

So, the ISS orbit crosses the South American Magnetic Anomaly sometimes which does give them a bit of inner Van Allen belt radiation sometimes. But they're still completely protected from direct emissions of charged particles from Sun. They would get much, much more radiation if they were orbiting out by the Moon even before you start worrying about solar storms.