Walter B. Parker Act, which was signed into law in 1980 by U.S. President Jimmy Carter. On March 24, 1989, the Exxon Valdez oil tanker struck Bligh Reef in Prince William Sound, spilling an estimated 260,000 to 750,000 barrels of crude oil. The Exxon Valdez oil spill was a major environmental disaster for the state. Governor Steve Cowper, who held office at the time of the spill, appointed Walter Parker as the chairman of the Alaska Oil Spill Commission in 1989. The Alaska Oil Spill Commission was created by the Alaska state government to investigate the causes of the Exxon Valdez oil spill.
Prestige oil spill a rupture and quickly release much of the remaining oil and create another catastrophic spill. The report urged the government to take "prompt" action. Experts predicted marine life could suffer from the pollution for at least ten years due to the type of oil spill, which contained light fractions with polyaromatic hydrocarbons and could poison plankton, fish eggs and crustaceans with carcinogenic effects in fish and potentially humans as well. In the subsequent months, thousands of volunteers joined the public company TRAGSA (the firm chosen by the regional government to deal with the cleanup) to help clean the affected coastline.