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By looking back at major events, such as the 2010 Deepwater Horizon oil spill, and policy changes, such as the Oil Pollution Act of 1990, we can explore how these events shaped our ability to respond to and plan for disasters. In the timelines below, dive back in time to important dates and events in our history as one of the leading agencies working to keep our nation's coasts clean from threats of oil, chemicals, and marine debris.