我试试看,在architect as a contract administrator的contract里,所谓nominated sub contractor就是contract administrator指定builder要用的sub contractor,client和sub contractor之间会签署这个nominated sub contract?直到builder enggage了他们,builder和sub contractor之间才会用domestic sub contract?
Nomineted sub con是contract administrator / employer指定的Main contractor 一定要用他们做某些special Work.
domestic sub con 是Main Contratcor 自己选的。所以main Con 承担的责任不一样。比方说,nominated sub con 的人手不足,导致工程延迟,main con 可能不用负责,因为是nominated sub con 的问题。