The Framework Contract is an entirely new NEC document and is intended for use in the appointment of one or more suppliers to carry out construction work or to provide design or advisory services on an 'as instructed' basis over a set term. This document contains the core clauses and the contract data forms. Construction Clients' Board endorsement of NEC3 The Construction Clients' Board (formerly Public Sector Clients' Forum) recommends that public sector organisations use the NEC3 contracts when procuring construction. Standardising use of this comprehensive suite of contracts should help to deliver efficiencies across the public sector and promote behaviours in line with the principles of Achieving Excellence in Construction.