This report describes the Children’s Health Insurance Program (CHIP) in Massachusetts and its role as part of MassHealth. Though there is no expiration date for CHIP in federal law, Congress has authorized funding of the program through September 30, 2017. Without Congressional action, a majority of states, including Massachusetts, will exhaust their current federal CHIP allocation by March 2018. This report discusses the importance of CHIP and the broader health policy debate, including reauthorization, now taking place in Washington.