Checkpoint This link opens in a new windowContains accounting, federal, state, and international tax materials. Provides full-text access to primary source materials such as tax laws, statutes, regulations, legislation, committee reports, and court case rulings, as well as secondary sources such as editorial and analytical materials. Topics include: federal, state, and local tax, international tax, business and individual tax, tax planning, audit and accounting, corporate finance, international trade, estate planning, payroll, and pension and benefits.