This website allows interested parties to track state legislation addressing college- and career-readiness state standards, including the Common Core State Standards (CCSS).
Information for 2015 legislation available here.
A trend line based on bill counts from 2011 to 2014 suggested the number of bills introduced on college and career readiness standards would top 600. As of the end of March 2015, legislators have introduced legislation at a clip well beyond projections. Dig through these bills here.