http://www.sec.gov/edgarhp.htm - U.S. Securities & Exchange Commission Edgar database of corporate filings

http://www.access.gpo.gov/nara/cfr/index.html - Code of Federal Regulations

http://www.access.gpo.gov/su_docs/aces/aces140.html - Archived Federal Registers

http://www.osha.gov/oshstats/sicser.html - Standard Industrial Classification (SIC) search

http://www.epa.gov/ - U.S. Environmental Protection Agency

http://www.epa.gov/superfund/sites/npl/npl.htm - EPA Fact Sheets for NPL Superfund Sites

http://www.epa.gov/eab/ - EPA Environmental Appeals Board

http://www.epa.gov/epahome/hotline.htm - EPA Hotlines

http://www.epa.gov/superfund/action/guidance/remedy/regenfor.htm - EPA Office of Site Remediation Enforcement Documents

http://www.ferc.gov/ - Federal Energy Regulatory Commission

http://www.dot.gov/ - U.S. Department of Transportation

http://www.myregs.com/dotrspa/ - DOT Office of Hazardous Materials Safety

http://www.osha.gov/ - Occupational Safety & Health Administration (OSHA)

http://www.achp.gov/ - Advisory Council on Historic Preservation

http://www.achp.gov/book/TOC2.html - Overview of Federal Law of Historic Preservation

http://www.usace.army.mil/inet/functions/cw/cecwo/reg/ - U.S. Army Corps of Engineers

http://www.fws.gov/index.html - U.S. Fish & Wildlife Service