2004—Subsec. (b). Pub. L. 108–357 amended heading and text of subsec. (b) generally. Prior to amendment, text read as follows: “The privilege under subsection (a) shall not apply to any written communication between a federally authorized tax practitioner and a director, shareholder, officer, or employee, agent, or representative of a corporation in connection with the promotion of the direct or indirect participation of such corporation in any tax shelter (as defined in section 6662 (d)(2)(C)(iii)).”

Pub. L. 108–357, title VIII, § 813(b), Oct. 22, 2004, 118 Stat. 1581, provided that: “The amendment made by this section [amending this section] shall apply to communications made on or after the date of the enactment of this Act [Oct. 22, 2004].”

Pub. L. 105–206, title III, § 3411(c), July 22, 1998, 112 Stat. 751, provided that: “The amendments made by this section [enacting this section] shall apply to communications made on or after the date of the enactment of this Act [July 22, 1998].”