This part of ISO 10845 establishes, in respect of supply, services and engineering and construction works contracts, at both main and subcontract levels, a) a format for the compilation of 1) calls for expressions of interest, 2) tender and contract documents, and b) the general principles for compiling procurement documents. NOTE 1 Annex A contains commentary on the clauses in this part of ISO 10845. NOTE 2 This International Standard can also be used, with some adaptation, in the formatting and compilation of concession contracts and contracts involving disposals. NOTE 3 Annex G of ISO 10845-1 provides guidance on the development of auction data