6651.
Failure to file tax return or to pay tax.
6652.
Failure to file certain information returns, registration statements, etc.
6653.
Failure to pay stamp tax.
6654.
Failure by individual to pay estimated income tax.
6655.
Failure by corporation to pay estimated income tax.
6656.
Failure to make deposit of taxes.
6658.
Coordination with title 11.
[6659 to 6661. Repealed.]