Colorado Mandates K-3 Screening by 2027

Senate Bill 200, signed into law in 2025, requires every Colorado school district to implement universal dyslexia screening for kindergarten through third grade students by the 2027-28 school year. The legislation expands the state’s existing READ Act framework, mandating that districts either adopt state-approved screening tools or design their own assessment processes that meet specific criteria. When indicators appear in screening results, schools must complete diagnostic assessments within 60 days and develop individualized learning plans with targeted skill-building strategies.

Rachel Arnold, president of the Rocky Mountain branch of the International Dyslexia Association, explains that research consistently shows 15 to 20 percent of students process print differently—yet many go unidentified until academic gaps become difficult to close. “We noticed that when we are able to go in with the screeners early and target those students with the exact instruction that’s needed, then we can close the gap going into third and fourth grade,” Arnold told local media. The universal approach ensures identification doesn’t depend on which district has resources to screen proactively.

Implementation details are still emerging. The Colorado Department of Education plans to finalize guidance and approve screening assessments by summer 2026, with all K-3 teachers required to complete training in administration and interpretation. Districts face costs for supplemental assessment tools, staff training, and enhanced documentation, though the bill includes no dedicated funding provisions—a reality that’s hitting rural communities particularly hard.