Established in 1993, the Corporation for National and Community Service (CNCS) is a federal agency that engages more than 5 million Americans in service through its core programs — Senior Corps, AmeriCorps, and the Social Innovation Fund — and leads President Obama’s national call to service initiative, United We Serve. As the nation’s largest grantmaker for service and volunteering, CNCS plays a critical role in strengthening America’s nonprofit sector and addressing our nation’s challenges through service. The Social Innovation Fund (SIF), a key White House initiative and program of the Corporation for National and Community Service (CNCS), combines public and private resources to grow the impact of innovative, community-based solutions that have compelling evidence of improving the lives of people in low-income communities throughout the United States. The SIF makes grants to experienced grantmaking “intermediaries” that are well-positioned within communities to identify the most promising programs and guide them towards greater impact and stronger evidence of success. These grants range from $1-$10 million annually for up to five years. Also, AmeriCorps VISTA members become engaged in community service.