What are the differences between CHS and Value-Added Reseller (VAR) products?
Value-Added Reseller (VAR) products are created under licence from CHS but are not “authorized” by CHS for use in navigation. These charts do not meet the chart carriage requirements and paper charts must also be carried unless the user has an Electronic Chart Display and Information System (ECDIS). VAR products are considered as aids to navigation and official CHS charts must be carried and used. Official products issued by CHS are updated regularly whereas VAR products are not required to be updated with the latest CHS data. For more information, please refer to the Value-Added Reseller section of this web site and our list of authorized manufacturers.