Exxon Valdez oil spill a number of recommendations, such as changes to the work patterns of Exxon crew in order to address the causes of the accident. In response to the spill, the United States Congress passed the Oil Pollution Act of 1990 (OPA). The legislation included a clause that prohibits any vessel that, after March 22, 1989, has caused an oil spill of more than in any marine area, from operating in Prince William Sound. In April 1998, the company argued in a legal action against the Federal government that the ship should be allowed back into Alaskan waters. Exxon claimed OPA was
NEPCO 140 oil spill and national volunteers for months. Clean-up of the oil was accomplished primarily by intensive hand labor, through power-washing shorelines and hand cutting and hauling contaminated underwater and marsh vegetation. The clean-up was terminated on October 22, 1976; 122 days after the spill. However, many areas with oil contamination were not cleaned-up and the oil was left to degrade naturally. The United States alleged it spent $8,062,981 to clean its territorial waters and reimbursed Canada, pursuant to an executive agreement for their $768,265 spent.<ref name="http://bulk.resource.org/courts.gov/c/F2/664/664.F2d.327.81-6084.1608.html"></ref> NEPCO 140 oil spill The NEPCO 140 Oil Spill took place in 1976 near Clayton, New