Terms and Conditions

Page updated: September 2026

Accuracy and changes

Nothing here is warranted to stay accurate. For anything that turns on a current figure or rule, go to the primary source.

Uptime and changes

There is no guarantee that the site will be reachable at any given moment. Content may be revised or withdrawn at the operator's discretion.

Sites run by others

Nothing on a linked site is under this site's control. Their own terms and conditions apply to them.

Amendments

Revisions are published here rather than announced individually. The version in force is the one shown above.

Questions about these terms

If you need to raise something about these terms, the address to use is [email protected].