The National Assessment Governing Board (the Board) contracted with Pearson to design and implement a review of the achievement level descriptions (ALDs) for National Assessment of Educational Progress (NAEP) Grade 8 assessments in Science, U.S. History, and Civics. This document describes the procedural and technical aspects and outcomes of the operational ALD Review study. This study commenced after Pearson had completed an ALD Review study for Mathematics and Reading in 2022, which itself was undertaken on behalf of the Board for the reasons noted in the Background section of this report. In particular, this report addresses the Board's updated achievement levels policy that called for the development of Reporting ALDs, which state what student performance associated with each NAEP achievement level likely can demonstrate related to the assessment content, and how these align with the existing content ALDs included in the frameworks and achievement level policy definitions. [For the 2022 report, "Achievement Level Description Review for the National Assessment of Educational Progress Mathematics and Reading Assessments. Final Process Documentation and Technical Report," see ED627620.]