Accuracy and currency

A number, rule, or mechanism that affects a decision is worth confirming at the primary source first. Nothing here is warranted as fit for that purpose.

Links to other websites

A linked page can change at any time. A link that was accurate when it was added may point somewhere different now.

Changes to this page

Should any of it change, the updated version supersedes the previous one as soon as it appears here.

If something here is wrong

Questions about anything written on these pages can be sent to [email protected].