Administrative rules and regulations are issued by government agencies in response to congressional laws. Regulations are published first in the Federal Register and then are incorporated into the Code of Federal Regulations.

Regulations and Federal Register

• Federal Register: unofficial XML-based prototype of the daily Federal Register, organized and displayed in an easier to read format. Includes web tools and user aids designed to make it easier to understand and participate in the regulatory process.
• RegInfo.gov: Where to find regulatory information
• Regulations.gov Find, review, and submit comments on Federal documents that are open for comment and published in the Federal Register.
• Federal Register  (1994-current, Government Printing Office)
• Federal Register  (1936-current, HeinOnline, Yale only)
• Federal Register web site (National Archives, Office of the Federal Register)

Non-governmental Sites for Tracking Regulations

• OpenRegs.com
• Justia.com Regulation Tracker

Code of Federal Regulations

• Code of Federal Regulations  (1996-current, Government Printing Office)
• Code of Federal Regulations (1938-current, HeinOnline, Yale only)
• Electronic Code of Federal Regulations (GPO Access)
  The e-CFR is an editorial compilation of CFR material and Federal Register amendments produced by the National Archives and Records Administration's Office of the Federal Register (OFR) and the Government Printing Office. The OFR updates the material in the e-CFR on a daily basis. It is not an official legal edition of the CFR.
• List of CFR Sections Affected (1986-current, Government Printing Office)
• List of CFR Sections Affected (1958-current, HeinOnline, Yale only)
  The List of CFR Sections Affected lists proposed, new, and amended federal regulations that have been published in the Federal Register since the most recent revision date of a CFR title.

Administrative Decisions

• HeinOnline
• Federal Administrative Decisions and other Actions (University of Virginia School of Law)
  Links to other administrative actions that are outside the scope of the Code of Federal Regulations or the Federal Register.

Guides

• The Reg Map: an overview of the "informal rulemaking" process.
• Research Guide to the Federal Register and the Code of Federal Regulations (Law Librarian Society, Washington, DC.)