the school district of a local educational agency that is eligible for assistance under part A of title I of the Elementary and Secondary Education Act of 1965 ( 20 U.S.C. 6311 et seq.), or (ii) is served or operated by an educational service agency that is eligible for such assistance, or (B) an elementary school or secondary school that is funded by the Bureau of Indian Education and that is in the school district of a local educational agency that is eligible for such assistance. . (b) W–2 reporting of continuous employment for certain positions at qualifying early childhood education programs or qualifying schools Section 6051(a) of the Internal Revenue Code of 1986 is amended by striking and at the end of paragraph (16), by striking the period at the end of paragraph (17) and inserting , and , and by inserting after paragraph (17) the following new paragraph: (18) in the case of an employee who is employed in a position described in subsection (a)(2) of section 36C, the number of school years for which such employee has been continuously employed in any such position. . (c) Conforming amendments (1) The table of sections for subpart C of part IV of subchapter A of chapter 1 of subtitle A of the Internal Revenue Code of 1986 is amended by inserting after the item relating to section 36B the following: Sec. 36C. Teacher and school leader retention credit. . (2) Section 6211(b)(4)(A) of such Code is amended by striking and 36B, 168(k)(4) and inserting 36B, and 36C . (3) Paragraph (2) of section 1324(b) of title 31, United States Code, is amended by inserting 36C, after 36B, . (d) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2020. 5. Developing interagency data series The Secretary of Labor, in coordination with the Secretary of the Treasury, the Secretary of Education, and the Secretary of Health and Human Services, shall— (1) develop and publish on the internet website of the Bureau of Labor Statistics a data series that captures— (A) the average