1. Treatment of advance refunding bonds (a) In general Section 149(d) of the Internal Revenue Code of 1986 is amended— (1) in paragraph (1), by striking to advance refund another bond and inserting as part of an issue described in paragraph (2), (3), or (4) ; (2) by redesignating paragraphs (2) and (3) as paragraphs (6) and (7), respectively