Oil tankers bring about 15 million gallons of oil every day into Washington state. Starting Jan. 1, those ships are required to have double hulls.
The oil-spill prevention measure has been in the works for decades, ever since Capt. Joseph Hazelwood ran the Exxon Valdez onto Alaska's Bligh Reef in 1989. Eleven million gallons of oil spilled into Prince William Sound, killing thousands of seabirds and sea otters, devastating the region's fisheries and unleashing action in Washington, D.C.