Subchapter A - In General
- Section 6201 - Assessment authority
- Section 6202 - Establishment by regulations of mode or time of assessment
- Section 6203 - Method of assessment
- Section 6204 - Supplemental assessments
- Section 6205 - Special rules applicable to certain employment taxes
- Section 6206 - Special rules applicable to excessive claims under certain sections
- Section 6207 - Cross references