Our wonderful state of Colorado has adopted CC.
Of course it has. Despite the fact the consortium doing the testing has been ruled unconstitutional in the state of Missouri. The multi-state compact was never approved by the US Congress, as State compacts must be to be legally constitutional. The state is probably not in compliance with numerous state statutes as well regarding public education, not to mention the Federal dept of Ed dealing deceitfully with the American people in overstepping their charter making demands, mandates and being engaged in curriculum at the state level.
Oh, but the draw of the money is too powerful. That is the real reason why we are stuck with it.