If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email firstname.lastname@example.org.
Please tell us what format you need. It will help us if you say what assistive technology you use.
The purpose of this divisional circular letter is to bring to attention to all building control bodies and other interested parties the safe design, construction and maintenance of freestanding boundary and retaining walls.