Va. Code Ann. § 22.1-239

In approving basal textbooks and other high-quality instructional materials for reading in kindergarten and first grade, the Board shall report to local school boards those textbooks and other high-quality instructional materials with a minimum decodability standard based on words that students can correctly read by properly attaching speech sounds to each letter to formulate the word at 70 percent or above for such textbooks and other high-quality instructional materials.