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Use of this site is on the terms below. They exist to be clear about what published guidance is and what it is not.

No Warranty of Accuracy

Reasonable care goes into keeping the content accurate. Anything load bearing on a decision should be verified against a current source before it is acted on.

Changes

What appears on this page is the current agreement. Earlier versions are superseded rather than archived.

Use at Your Own Risk

The reader decides what to do with what they read here. To the extent permitted by law, no liability arises from its use.

Reuse of Content

Content on this site is its publisher's property. Quoting a short passage with a link back is welcome; republishing a page in full is not.

General Information Only

Nothing published here is professional advice. Where what is written here conflicts with what a qualified professional says about the actual job, the professional is right.

Third Party Sites

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