Definitions

For purposes of this subchapter, the term “first tier tax” means any tax imposed by subsection (a) of section 4941, 4942, 4943, 4944, 4945, 4951, 4952, 4955, 4958, 4966, 4967, 4971, or 4975. For purposes of this subchapter, the term “second tier tax” means any tax imposed by subsection (b) of section 4941, 4942, 4943, 4944, 4945, 4951, 4952, 4955, 4958, 4971, or 4975. For purposes of this subchapter, the term “taxable event” means any act (or failure to act) giving rise to liability for tax under section 4941, 4942, 4943, 4944, 4945, 4951, 4952, 4955, 4958, 4966, 4967, 4971, or 4975. For purposes of this subchapter— Except as provided in paragraph (2), the term “correct” has the same meaning as when used in the section which imposes the second tier tax. The term “correct” means— For purposes of this subchapter— The term “correction period” means, with respect to any taxable event, the period beginning on the date on which such event occurs and ending 90 days after the date of mailing under section 6212 of a notice of deficiency with respect to the second tier tax imposed on such taxable event, extended by— For purposes of paragraph (1), the taxable event shall be treated as occurring—