This Practice Note provides an introduction to the FIDIC Conditions of Contract for Design, Build and Operate Projects 2008, commonly known as the Gold Book 2008. For what type of project is the Contract suitable? The FIDIC Gold Book 2008 is a design, build and operate contract (‘DBO’)—for general information on DBO contracts, see Practice Note: DBO contracts. It assumes a greenfield design-build-operate scenario with a 20-year operation and maintenance period. As written, it is not suitable for brownfield projects, ie the upgrading of an existing facility. The FIDIC DBO Contract Guide (1st edition, 2011—published by FIDIC) states that the FIDIC Gold Book might be suitable for: ‘infrastructure projects where the resulting facility will often produce an income or revenue for the Employer and where the Employer might not have the resources or experience to operate the facility himself and might otherwise consider engaging a service provider or operator.’ There is an assumption that the Contract will be awarded to a single contracting entity,