The Sustainable DC Plan is the District’s first sustainability plan that lays out a path forward to make the District the healthiest, greenest, most livable city in the nation over the next 20 years. In the summer of 2011, Mayor Gray announced a new initiative to make DC a leader in sustainability, while improving quality of life and creating new economic growth for all residents. Nearly 18 months later, with the collaboration and hard work of residents, workers, business leaders and professional experts, the District has a strategy to address our core urban challenges with innovative, forward thinking solutions focused around sustainability.