CARN stands for County Archives Research Network.
This is a nationwide scheme which certain local authority archive facilities may opt in to. It provides a single membership card for all these facilities. Holders of a CARN membership card will be permitted to use the facilities at a participating archive without signing up and obtaining a new card for each one.
You can obtain a CARN ticket at any participating archive facility. You will need proof of identity. Note that a passport is not accepted as proof in this case as it does not necessarily include a postal address. Driving licences and utility bills are accepted as proof of identity.
CARN tickets are issued and accepted at (among others):
- Birmingham City Archives
- Hampshire Record Office
- Lancashire County Records Office
- Worcestershire Record Office
The CARN scheme appears not to have a website (as of November 2007).