are transferred or reemployed during such period , and (C) by striking section 9502 or 9503 after June 1, 1998 and inserting section 9503 during such period . (c) Performance awards for senior executives Section 9505(a) of title 5, United States Code, is amended— (1) by striking Before September 30, 2013 and inserting During the period beginning on October 1, 2018, and ending on September 30, 2023 , and (2) by striking significant functions and inserting the information technology operations . (d) Effective date The amendments made by this section shall apply to payments made on or after the date of the enactment of this Act. 703. Uniform standards for the use of electronic signatures for disclosure authorizations to, and other authorizations of, practitioners Paragraph (3) of section 6061(b) is amended to read as follows: (3) Published guidance (A) In general The Secretary shall publish guidance as appropriate to define and implement any waiver of the signature requirements or any method adopted under paragraph (1). (B) Electronic signatures for disclosure authorizations to, and other authorizations of, practitioners Not later than 6 months after the date of the enactment of this subparagraph, the Secretary shall publish guidance to establish uniform standards and procedures for the acceptance of taxpayers’ signatures appearing in commercially provided electronic form with respect to any request for disclosure of a taxpayer's return or return information under section 6103(c) to a practitioner or any power of attorney granted by a taxpayer to a practitioner. (C) Practitioner For purposes of subparagraph (B), the term practitioner means any individual in good standing who is regulated under section 330 of title 31, United States Code. . 704. Limitation on access of non-Internal Revenue Service employees to returns and return information (a) In general Section 7602 is amended by adding at the end the following new subsection: (f) Limitation on access of persons other than Internal Revenue Service officers and