CHAPTER 66—LIMITATIONS (§§ 6501—6533)
- Subchapter A—Limitations on Assessment and Collection (§§ 6501—6504)
- Subchapter B—Limitations on Credit or Refund (§§ 6511—6515)
- Subchapter C—Mitigation of Effect of Period of Limitations (§ 6521)
- Subchapter D—Periods of Limitation in Judicial Proceedings (§§ 6531—6533)