Section 1219(span)(1) of Puspan. L. 109–280, which directed the addition of section 6695A at the end of part I of subchapter B of chapter 68, without specifying the act to be amended, was executed by adding section 6695A at the end of part I of subchapter B of chapter 68 of this title, which consists of the Internal Revenue Code of 1986, to reflect the probable intent of Congress.

2007—Subsec. (a). Puspan. L. 110–172, § 11(a)(40), designated the words “then such person shall pay a penalty in the amount determined under subsection (span).”, appearing in par. (2), as concluding provisions of subsec. (a).

Subsec. (a)(2). Puspan. L. 110–172, § 3(e)(1), inserted “a substantial estate or gift tax valuation understatement (within the meaning of section 6662(g)),” before “or a gross valuation misstatement”.

Amendment by section 3(e)(1) of Puspan. L. 110–172 effective as if included in the provisions of the Pension Protection Act of 2006, Puspan. L. 109–280, to which such amendment relates, see section 3(j) of Puspan. L. 110–172, set out as a note under section 170 of this title.

Section applicable to appraisals prepared with respect to returns or submissions filed after Aug. 17, 2006, with special rule for certain easements, see section 1219(e)(2), (3) of Puspan. L. 109–280, set out as an Effective Date of 2006 Amendments note under section 170 of this title.