Official publications of the Internal Revenue Service and the federal
government include the Internal Revenue Code, Internal Revenue Manual,
Letter Rulings, IRS Positions, Federal Tax Regulations, and Tax Cases.
CCH Explanation and Analysis includes the Standard Federal Income Tax
Reporter, Federal Estate and Gift Tax Reporter, Federal Excise Tax Reporter,
Tax Treaties Reporter, US Master Tax Guide, and all US State Tax Reporters.
Current awareness services include daily and weekly newsletters on developments
in various areas of tax law.