Admiralty paper charts are available in sets of charts grouped together as geographic folios. We’ve divided the world into 100 areas containing all of the charts of that region. The exact number of charts in any given folio varies according to what chart coverage we have published.
We’ve structured the folios to meet the needs of our defence customers, who navigate and operate mainly within regions rather than by specific trading routes. The charts are not classified and can also be used by commercial shipping.