Sustainable Communities Act 2007 Ben Chapman 24. To ask the Secretary of State for Communities and Local Government what mechanisms her Department uses to evaluate the effectiveness of the Sustainable Communities Act 2007. Mr. Khan Last October the Secretary of State invited local authorities to submit proposals under the Sustainable Communities Act. Local authorities have until 31 July 2009 to put forward proposals. The Local Government Association and Communities and Local Government will consider the lessons from the first round as it develops, and will publish information on further invitations in due course.