PUBLIC LAW 105-285—OCT. 27, 1998 112 STAT. 2723 "(B) PROGRESS.— The Secretary shall require Head Start agencies to demonstrate continuing progress each year to reach the result described in subparagraph (A). " (3) ALTERNATIVE CREDENTIALING REQUIREMENTS.— The Secretary shall ensure that, for center-based programs, each Head Start classroom that does not have a teacher that meets the requirements of clause (i) or (ii) of paragraph (2)(A) is assigned one teacher who has— "(A) a child development associate credential that is appropriate to the age of the children being served in center-based programs; "(B) a State-awarded certificate for preschool teachers that meets or exceeds the requirements for a child development associate credential; or "(C) a degree in a field related to early childhood education with experience in teaching preschool children and a State-awarded certificate to teach in a preschool program. " (4) WAIVER.— "(A) IN GENERAL. —On request, the Secretary shall grant a 180-day waiver of the requirements of paragraph (3), for a Head Start agency that can demonstrate that the agency has unsuccessfully attempted to recruit an individual who has a credential, certificate, or degree described in paragraph (3), with respect to an individual who— "(i) is enrolled in a program that grants any such credential, certificate, or degree; and "(ii) will receive such credential, certificate, or degree under the terms of such program not later than 180 days after beginning employment as a teacher with such agency. "(B) LIMITATION.— The Secretary may not grant more than one such waiver with respect to such individual."; and (2) in subsection (b)(2)(B)— (A) by striking "staff," and inserting "staff or"; and (B) by striking ", or that" and all that follows through "families". SEC. 116. RESEARCH AND EVALUATION. Section 649 of the Head Start Act (42 U.S.C. 9844) is amended— (1) in subsection (d)— (A) in paragraph (6), by striking "and" at the end; (B) in paragraph (7), by striking the period at the end and inserting a semicolon; (C) by redesignating paragraphs (2) through (7) as paragraphs (3) through (8), respectively; (D) by inserting after paragraph (1) the following: "(2) establish evaluation methods that measure the effectiveness and impact of family literacy services program models, including models for the integration of family literacy services with Head Start services;"; and (E) by adding at the end the following:
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