The CCH Tax Research NetWork is a comprehensive collection of tax codes, tax regulations, and tax-related court cases from the federal government and all fifty state governments. It includes many primary sources such as the Internal Revenue Code, Federal Tax Regulations, United States Tax Court cases, State Tax Reporters, Legislative Documents and Treaties, and IRS Publications, plus explanations and analysis of current tax law in various CCH publications such as the Federal Tax Service, the Standard Federal Income Tax Reporter, the Federal Estate and Gift Tax Reporter, and the U.S. Master Tax Guide. Use the Federal, State, and International tabs to browse individual publications in the collections. If you would like to search all publications, see the "Search Tools" option for advanced keyword searching. Use the "Find by Citation" option if you have a full citation.