You may, however, also wish to refer to the unannoted United States Code to avoid retrieving exterraneous material. Statutes from all 50 states and the District of Columbia are available in both an annotated and unannotated format. Cross-references to related statutes. Library references, including topic and key numbers, Corpus Juris Secundum references and state practice guide references related to the subject matter of the statute. Historical notes, which can include editorially prepared summaries explaining alterations in and additions to the text of the law or notes that explain the historical background and development of the legislation.
Law review commentary references.
An archive version of the CFR dates back to 1984.