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ADMIRALTY Mariner’s Handbook (NP100)

The comprehensive guide to seamanship and key aspects of navigation

ADMIRALTY Mariner's Handbook (NP100)

​​​​​​​​​​​​​The Mariner’s Handbook (NP100) contains clear guidance to help mariners improve their understanding of maritime navigation, sea and ice conditions, meteorology and regulations. A highly valued publication, NP100 is used as a ‘core’ text by many leading maritime training academies and maritime related organisations.

The Mariner’s Handbook includes:

  • ​​​​Guidance to assist mariners in navigational training and active bridge procedures. Information includes charts and their use, the communication of navigational information, the maritime environment, restrictions to navigation and maritime pollution and conservation.

  • Simple tabular layouts to help users quickly locate essential information, with images to aid the understanding of complex subjects

  • ADMIRALTY QR codes for quick access to a list of all Notices to Mariners (NMs) that affect the publication


Also available as an ADMIRALTY e-Nautical Publication

In addition to paper format, the Mariner's Handbook is available as an ADMIRALTY e-Nautical Publication (AENP). AENPs bring improved efficiency, accuracy and access to information bridge crews need through electronic NM updates and simple search functionality.

Find out more about AENPs here >​​



We provide regular Notices to Mariners (NMs) to help you ensure your ADMIRALTY publications are maintained and up-to-date with the latest safety critical information.

These weekly NMs can be downloaded for free from our website, or the paper bulletin can be bought from your ADMIRALTY Chart Agent.

View and download the latest NMs here >


How to buy

The Mariner’s Handbook has the following recommended retail prices:

Hardback Paper Publication: £63.50

AENP: £38.70

Please note that AENP prices refer to an individual annual licence and that all prices do not include VAT and other local taxes. To find out more information or to organise purchase, please contact your ADMIRALTY Chart Agent. If you don’t have a preferred chart agent, you can search a list of worldwide, experienced and trusted chart agents on our find an ADMIRALTY Chart Agent page.

Find an ADMIRALTY Chart Agent >

The ADMIRALTY Digital Catalogue (ADC) can also provide you with a comprehensive reference of all ADMIRALTY Maritime Data Solutions. To find out more about the ADC, please click here.