Fortnightly Notices to Mariners, tracings, blocks and other supplements are available in PDF format to update paper charts and paper publications.
Get the latest updates to AusENC and other downloadable products here.
The AHO marked a significant milestone in maritime navigation with the public release of its first S-100 products in Port Botany. See S-100 Rollout Plan for our published S-100 products.
Learn about the AHO's plans for the implementation of the new IHO Standard that will support the next generation of maritime products and services, and enable e-Navigation, from 2026. See S-100 Videos
