Latest Versions of Relevant IHO Standards

Click here for a list of the latest IHO Standards that apply to ECDIS Equipment and the latest IHO Standards that apply to ENC Production and Distribution.

Latest versions of the software used to operate ECDIS

Click here for a list of the references to the latest versions of ECDIS software as provided by equipment manufacturers.

Please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it for providing update to this list.

The following links provide more information about ENCs and the associated standards:

Future Development

• S-100 and the IHO Registry
• E-Navigation

ENC Production

• Introduction
• S-57 Encoding Bulletins (important resource for data encoders)
• S-57 Frequently Asked Questions
• S-65 ENC Production guidance

• Introduction
• S-52 Portrayal Bulletins
• S-52 Frequently Asked Questions
• ENC Presentation (Colours and Symbols & Presentation Library)

• Introduction
• S-63 Documents Content
• Implementing the IHO Security Scheme
• S-63 FAQs
• Maintenance

• Introduction
• View ENC Catalogue
• Backup Paper Chart Requirements
• Online Chart Catalogues
• Catalogue Resources
• IHO Contact persons regarding ENC Overlap issues

ECDIS Data Presentation and Performance Check in Ships - Click HERE