Go to content

Overview weekly editions

To support safe navigation, the Hydrographic Service publishes the most important changes to nautical products. It does so by issuing Notices to Mariners (NtMs). Besides browsing the NtMs Database, you can download all notices in a booklet (PDF). This booklet contains all notices of that particular week and is therefore also known as the weekly edition.

If you discover any uncharted dangers, changes, or errors in our products, please let us know by sending an e-mail to: info@hydro.nl.

As of week 17 (29 April 2021), The Netherlands Hydrographic Service will no longer issue tracings for each nautical chart notice. If one or more tracings are available, this will be announced in the NtM concerned ("Tracing available"). The tracing(s) will be uploaded on the website.

137 weekly editions

Search for a weekly edition

Select a year and week if you want to search for weekly editions starting from a certain week.

Select a year and week if you want to search for weekly editions until a certain week.

Week 38 - 2021

NtM numbers: 335 - 340 | No Blocks, Annex and Tracings published

Week 37 - 2021

NtM numbers: 325 - 334 | 2 Blocks and 0 Tracings

Week 36 - 2021

NtM numbers: 316 - 324 | No Blocks, Annex and Tracings published

Week 35 - 2021

NtM numbers: 307 - 315 | No Blocks, Annex and Tracings published

Week 34 - 2021

NtM numbers: 298 - 306 | No Blocks, Annex and Tracings published

Week 33 - 2021

NtM numbers: 289 - 297 | 1 Block and 1 Tracing

Week 32 - 2021

NtM numbers: 280 - 288 | No Blocks, Annex and Tracings published

Week 31 - 2021

NtM numbers: 269 - 279 | No Blocks, Annex and Tracings published

Week 30 - 2021

NtM numbers: 259 - 268 | 2 Blocks and 0 Tracings

Week 29 - 2021

NtM numbers: 248 - 258 | 0 Blocks and 4 Tracings

Go to