NEC4: Engineering and Construction Contract Option B: priced contract with bill of quantities

NEC4: Engineering and Construction Contract Option B: priced contract with bill of quantities Option B is a priced contract with a bill of quantities where the risk of carrying out the work at the agreed prices being is borne by the contractor. This document contains all the core and secondary option clauses, the shorter schedule of cost components, and contract data, relevant to an option B contract.