Welcome to the
Naval Authority Unclassified Library

This library is the industry point of access to the UK MOD Naval Authority’s unclassified (OFFICAL or lower) selected information.

Access to this website will be given on request to MOD/RN personnel or pre-approved defence companies' employees.

Access may also be requested via an UK MOD sponsor.

Note: when registering please use your MOD or company email address, other email addresses will not be accepted.

(This website no longer provides NSASS information. Please see FAQ for more information.)