A prior section 5661, act Aug. 16, 1954, ch. 736, 68A Stat. 695, consisted of provisions similar to those comprising this section, prior to the general revision of this chapter by Pub. L. 85–859.

Prior section 5661(a) also provided for an additional penalty “of double the tax due, to be assessed, levied and collected in the same manner as taxes are collected”. See section 6651 et seq. of this title.

Section effective July 1, 1959, see section 210(a)(1) of Pub. L. 85–859, set out as a note under section 5001 of this title.