User Agreement

Document dated September 2026

Content updates

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

Third-party websites

Whoever runs that service sets the terms that apply there.

Service availability

Expect the site to change. Addresses, wording, and availability may all shift, and no particular outcome is promised to any reader.

If this changes

Updates appear on this page and are not sent out separately. Reading the page is the way to see the current version.

Raising a question

[email protected] receives correspondence about the terms of use.