The C-Map ENC+ Service, a cooperation between C-Map and the Norwegian Hydrographic Service, combines Electronic Navigational Charts (ENCs) from Primar and CM-ENCs to give global ENC coverage from one source. The service ensures that mariners are always navigating with an approved ENC from hydrographic offices, when these are available. If an ENC is not available for any area, the service will notify the navigator (during route planning or navigation) and add in C-Map Professional+ chart data.
Weekly updating is included in the annual licensing costs.