of Internal Revenue) and inserting the Administrator of the Internal Revenue Service (or, if designated by the Administrator, the Deputy Administrator or an Assistant Administrator of the Internal Revenue Service) , and (B) in paragraph (2) by striking Commissioner and inserting Administrator . (9) Section 7611(b)(3)(C) is amended by striking regional commissioner and inserting regional administrator . (10) Section 7701(a)(13) is amended to read as follows: (13) Administrator The term Administrator , except where the context clearly indicates otherwise, means the Administrator of the Internal Revenue Service. . (11) (A) Section 7804(a) is amended by striking Commissioner of Internal Revenue and inserting Administrator of the Internal Revenue Service . (B) Subsections (a), (b)(1), and (b)(2) of section 7804(a), as amended by subparagraph (A), are each amended by striking Commissioner each place it appears therein and inserting Administrator . (12) Section 7811(c)(1) is amended by striking the Commissioner of Internal Revenue, or the Deputy Commissioner of Internal Revenue and inserting the Administrator of the Internal Revenue Service, or the Deputy Commissioner of the Internal Revenue Service . (d) Amendments to section 8D of the Inspector General Act of 1978 (1) Subsections (g)(2), (k)(1)(C), (l)(1), and (l)(2)(A) of section 8D of the Inspector General Act of 1978 are each amended by striking Commissioner of Internal Revenue and inserting Administrator of the Internal Revenue Service . (2) Section 8D(l)(2)(B) of such Act is amended by striking Commissioner each place it appears therein and inserting Administrator . (e) Other references Any reference in any provision of law, or regulation or other guidance, to the Commissioner of Internal Revenue, or to any Deputy or Assistant Commissioner of Internal Revenue, or to a Commissioner of any division or region of the Internal Revenue Service, shall be treated as a reference to the Administrator of the Internal Revenue Service, or to the appropriate Deputy or