Much construction work is done by sub-contractors, particularly the so-called domestic sub-contractors, appointed by the main contractor. The former usually work under the standard sub-contract DOM/1 for use with JCT 80, or DOM/2 for use with JCT 81--where there is contract design. Unfortunately, many sub-contractors' rights are often abused because they have little or no understanding of their rights and obligations under the new contracts. Written by an experienced quantity surveyor, this new book provides a clause-by-clause summary of these important principles.