HM Nautical Almanac Office operates under the same Privacy Policy as the UK Hydrographic Office.
No personal information is held on this site with the following two exceptions:
A list of e-mail adddresses of registered users of NavPac and their serial numbers is held on this site for those wishing to receive notification of updates and bug fixes for the NavPac software. No other use is made of this list.
A list of e-mail addresses is held on this site for those wishing to receive e-mail notification of the occurence of the new crescent Moon. No other use is made of this list. Sightings of the new crescent moon submitted by observers are stored but contain no means of tracing the observer.
We maintain log files of the usage of this site to determine the extent to which the site is accessed for statisitical purposes. We make no use of "cookies" or information gathering software.