US EPA

National Oil and Hazardous Substances Pollution Contingency Plan
This links to a PDF version of the NCP.

National Environmental Publications Information System (NEPIS)
EPA Publications and Documents Library with over 10,000 EPA Documents.

Oil Pollution Act (216kb)
This links to a PDF version of the Oil Pollution Act.

National Archives
This links to the National Archives site, where the Code of Federal Regulations (CFR) is available.

Cornell Law School Legal Information Institute
U.S. Code searchable by Title number and/or Section is available on this site.