Terms of Service

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

Reuse of Content

Copyright in the material here is retained. Short extracts with a credit and a link may be used freely; copying a page wholesale may not.

General Information Only

The content is general information, not a professional opinion on any individual job. Where what is written here conflicts with what a qualified professional says about the actual job, the professional is right.

Currency of the Content

The material is prepared carefully and still cannot be warranted as complete or up to date. No guarantee is offered that every statement is correct or current: codes are amended, products are discontinued, and prices move.

Use at Your Own Risk

Decisions taken on the basis of anything read here are the reader's own. No liability is accepted for loss or cost arising from acting on published guidance, to the fullest extent the law permits.

Revisions to These Terms

Terms can change over time. Whatever appears here when a reader visits is the operative version.

Third Party Sites

External links do not imply any endorsement. A link is a pointer, not a recommendation of whoever is at the other end of it.