Criteria for materials supporting implementation of the Common Core are now available at corestandards.org (go to the resources page to download the pdf, here is a direct link). They were written by the lead writers of the standards (Phil Daro, myself, and Jason Zimba). There’s an article about them by Erik Robelen at Education Week. A high school document, along with any revisions to the K–8 document resulting from public feedback, will be released early next year.