This special bundle contains everything needed to run a civil and building construction project. The Engineering and Construction Contract (ECC) is the main construction contract within the NEC3 family, from which the options A-F are extracted. It contains all core clauses and secondary option clauses, together with the schedules of cost components and forms for contract data. The NEC3 ECC Subcontract (ECS) is intended for use in appointing a subcontractor where the contractor has been appointed under the NEC3 Engineering and construction options, the available secondary options, schedules of cost components and contract data. Accompanying both documents are the ECC Guidance Notes and ECC Flow Charts, which include commentary notes on the clauses contained within and also set out the procedural logic of the contracts.