The purpose of this Coastal Stormwater Supplement (CSS) is to protect Georgia's existing water quality standards, particularly those of the state's coastal waters. It also provides for the implementation of the federally established 'management measures' related to new development, watershed protection and site development in the Coastal Nonpoint Source Management Area and Area of Special Interest. To provide for the implementation of these 'management measures,' it provides comprehensive guidance on an integrated, green infrastructure-based approach to natural resource protection, stormwater management and site design that can be used by Georgia's coastal communities to better protect coastal Georgia's unique and vital natural resources from the negative impacts of land development and nonpoint source pollution. It should be noted that this CSS does not provide guidance on managing construction stormwater runoff on development sites. While many of the better site planning and design techniques, low impact development practices and traditional stormwater management techniques discussed in this CSS can also be used to address construction stormwater runoff, more extensive guidance on the control of construction stormwater runoff can be found in the Manual for Erosion and Sediment Control in Georgia (GSWCC, 2000).