Within the Special Issue I of the handbook "Renewable resources in communities", all the essential information on how products and/or energy from renewable resources can be included into the portfolio of the public sector and its administrative work can be found. Professional contributions regarding the reorientation of public procurement, potential barriers, marketing and value-added effects, legal frameworks and examples of management practice are included into this special issue handbook. An extensive service section presents innovative products made ​​of bio-plastic, relevant eco-labels and sample formulations for procurement guidelines and tender specifications as well as useful further contacts for additional information.