U.S. Nuclear Industrial Safety Accident Rate (file) This graph depicts U.S. nuclear industrial safety accident rates by year between 1997 and 2007.

U.S. Nuclear Unplanned Automatic Scrams (file)

In the event of an imbalance in operations, the sophisticated safety systems of U.S. nuclear power plants are designed to shut down automatically well before any safety margins are exceeded. Unplanned automatic plant shutdowns, known as "scrams" or "trips" in the industry, are very infrequent. This graph summarizes unplanned automatic scrams in the U.S. nuclear industry between 1997 and 2007.

Significant Events at U.S. Nuclear Plants (file) This chart presents annual data on "Significant Events" in the nuclear industry for the years between 1988 and 2006.