1997—Pub. L. 105–34 substituted “the proper court, including the Tax Court. The Tax Court shall have no jurisdiction to enjoin any action or proceeding under this subsection unless a timely petition for a readjustment of the partnership items for the taxable year has been filed and then only in respect of the adjustments that are the subject of such petition.” for “the proper court.”

Section 1239(f) of Pub. L. 105–34 provided that: “The amendments made by this section [amending this section and sections 6226, 6230, 6501, 6512, 7421, 7459, and 7482 of this title] shall apply to partnership taxable years ending after the date of the enactment of this Act [Aug. 5, 1997].”