Subject access is by broad legal subjects. Prior to 1983, author entries provided access via subject heading and first letter of title. ILP is updated monthly. Articles relating to matters of law and legislation in periodical literature in the English language from the end of the 18th century to 1937. It contains lists of law periodicals indexed, general periodicals from which articles are indexed, and abbreviations used.
Book reviews appear in the author section by author and title of the reviewed book.
Subject access is by Library of Congress subject headings. First published in eight monthly issues and three quarterly cumulations, it becomes a single annual bound cumulation. Machine-readable format of the same data as Current Law Index, with the addition of legal newspapers and legal articles in general newspapers. The user types in the name or subject to be searched. Machine-readable format of the same data as Index to Legal Periodicals since 1980.