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.

Where outbound links go

Whoever runs that service sets the terms that apply there.

Running the site

Pages can be revised, moved, or withdrawn at any time, with no advance notice. Neither continuous availability nor any specific outcome is guaranteed.

Raising a question

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