ADMIRALTY e-Nautical Publications (e-NP) are digital versions of Admiralty paper Nautical Publications (NP). They are e-Books but differ in the fact that they are updated and sold as a data service on subscription rather than per edition. e-NPs are encrypted PDF versions of their paper equivalent; they look identical. This is essential in order to demonstrate that Notices to Mariners (NM) corrections have been made and the publication is compliant. e-NPs are produced using official data and are designed to meet SOLAS requirements. The weekly updates for e-NPs are very small, approximately 0.5Mb for all publications.You may download the latest updates at any time if you have an internet connection or Weilbach can send the updates via email, DVD or USB. Please contact email@example.com for assistance. Automatic updating ensures all corrections are applied and recorded. There is a correction log and a search function enables mariners to demonstrate update status. A printable certificate can confirm the status of each eNP. All publications held on a DVD and can be unlocked at sea. The e-NPs are considerably larger than the weekly update and we recommend that you receive new editions using cheaper shore based communication or receive them via email, DVD or USB. Each vessel can install three devices on independent PC’s under each licence. For additional copies more licenses should be purchased. The pricing is an annual subscription for an e-NP with the ability to download and install the latest amendments and editions of the NPs. The ADMIRALTY e-NPs will be displayed within the ADMIRALTY e-Reader. Press here to download the ADMIRALTY e-Reader. . Publications which are already available in ADP (Tide Tables, Lights List and List of Radio Signals vol. 2 and 6) will not be available as an e-NP.