The Centers for Disease Control and Prevention presents Weight of the Nation™ 2012, its national conference on obesity prevention and control. The theme for the 2012 conference is Moving Forward, Reversing the Trend. Conference organizers will illustrate this theme through presentations—concurrent, plenary, poster or video—that emphasize how communities; early care and education facilities; medical care facilities; workplaces; states, territories, and tribes; and schools can change nutrition and physical activity environments to prevent and control obesity. The conference will convene elected and appointed public policy makers; federal, tribal, state, local, and territorial public health practitioners; media and social marketing experts; and partners and researchers vested in obesity prevention and control.