Part I — Records, Statements, and Special Returns (Section 6001)
Part II — Tax Returns or Statements (Sections 6011 to 6021)
Part III — Information Returns (Sections 6031 to 6060)
Part IV — Signing and Verifying of Returns and Other Documents (Sections 6061 to 6065)
Part V — Time for Filing Returns and Other Documents (Sections 6071 to 6075)
Part VI — Extension of Time for Filing Returns (Section 6081)
Part VII — Place for Filing Returns or Other Documents (Section 6091)
Part VIII — Designation of Income Tax Payments to Presidential Election Campaign Fund (Section 6096)