26 USC § 7484
Change of incumbent in office
through Public Law 119-27, except Public Law 119-21
When the incumbent of the office of Secretary changes, no substitution of the name of his successor shall be required in proceedings pending before any appellate court reviewing the action of the Tax Court.
Editorial Notes
Amendments
1976—Pub. L. 94–455 struck out "or his delegate" after "Secretary".