RIA Checkpoint This link opens in a new windowProvides access to primary source materials for federal, state, and local tax laws, such as codes, regulations, current pending/enacted legislation, federal tax cases, IRS rulings, etc. Print equivalents include U.S. Tax Reporter, American Federal Tax Reports, Federal Tax Regulations, Federal Tax Coordinator 2d, State and Local Tax Reporters, and others. Includes Federal Accounting Standards Board (FASB) documents. Also includes explanations and analyses of tax laws and cases produced by RIA.