The CCH Internet Tax Research Network provides tax news as well as federal and state tax information. Included are tax codes, regulations, court cases, rulings, legislative documents, treaties, IRS (Internal Revenue Service) publications as well as CCH explanation and analysis. Federal Tax Archives are available for all years since 1978. State Tax Archives are available for all years since 1984. Includes the CCH Standard Federal Tax Reporter. (CCH stands for Commerce Clearing House).