The Centers for Medicare & Medicaid Services (CMS) is responsible for implementing laws passed by Congress related to Medicaid, the Children’s Health Insurance Program (CHIP), and the Basic Health Program. To implement these programs, CMS issues various forms of guidance to explain how laws will be implemented and what states and others need to do to comply. In addition to regulations, CMS issues sub-regulatory guidance to address policy issues as well as operational updates and technical clarifications of existing guidance.