In keeping with its mission to communicate the nature, values, and judgments of science to the public, the National Academy of Sciences has launched LabX, a public engagement initiative that will promote evidence-based decision making on issues that have significant relevance to communities and in which science is an important factor. The program engages audiences through a combination of online platforms and face-to-face group activities at venues in Washington, D.C.—including the Academy's historic building on the National Mall—and at other locations around the country.