Colorado Governor Polis signs SB 205 regulating AI systems with high-risk consequential decisions — first U.S. state AI accountability law

Colorado Governor Jared Polis signed Senate Bill 205, the Colorado Artificial Intelligence Act, making Colorado the first state to enact comprehensive AI accountability legislation. The law required developers and deployers of high-risk AI systems used in consequential decisions — employment, housing, lending, education, and healthcare — to conduct impact assessments, notify affected individuals, and provide human review options. Polis signed the bill while expressing reservations about its implementation timeline and urging the legislature to refine it before it took effect in 2026.