You can find links to legal cases and the administrative code of procedures for all 50 states and the U.S. federal government at FindLaw.com. The U.S. Government Publishing Office produces an annually updated version of the entire of Code of Federal Regulations that is available online at Gpo.gov. Another resource is the Electronic Code of Federal Regulations, an interim and temporary version that is updated daily by the National Archives staff, at Ecfr.gov.
Case summaries available at FindLaw include court decisions with accompanying legal opinions issued by the U.S. Supreme Court, the 13 U.S. Circuit Courts of Appeals, and some state and appellate courts, according to the website.
Administrative codes are publications that contain the text of all general and permanent official government official rules made by different agencies within it, according to the Administrative Codes and Registers division of the National Association of Secretaries of State. The association provides links to the approved codes of each state, as well as proposed codes and manuals, at AdministrativeRules.org.
The Code of Federal Regulations contains 50 separate titles, and each subject matter title contains one or more individual volumes, according to the GPO. It is the official codification of administrative rule making.