The FAA regulates non-military air travel in the U.S. The FAA was created in 1958 as an independent agency called "Federal Aviation Agency," but the name was changed in 1967, when the FAA became a part of the Department of the Transportation.
FAA regulations are published as Title 14 of the Code of Federal Regulations, the CCH Aviation Law Reporter and the FAA's Web site (http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgFAR.nsf/MainFrame?OpenFrameSet).
The FAA Web site also posts information about the agency & its officials, news releases, new FAA Regs plus Title 14, advisory circulars, bulletins, alerts, recent notices and other "Documents" (www.faa.gov).
FAA decisions are searchable on Lexis back to November 1989 (TRANS;FAA).