![](https://shipnet.eu/wp-content/uploads/2016/11/NGSM_bridge_1-1024x680.jpg)
![](https://shipnet.eu/wp-content/uploads/2016/11/NGSM_bridge_1-1024x680.jpg)
IMO’s circular ’ECDIS – Guidance for Good Practice‘ (MSC.1/Circ.1503) highlights the importance of ECDIS software maintenance and states that “ECDIS that is not updated to the latest version of the IHO standards may not meet the chart carriage requirements”