CBET is the specification of knowledge and skill and the application of that knowledge and skill to the standard of performance expected in the workplace. Based on the foregoing, CBET can been viewed as a way of approaching (vocational) training that puts much emphasis on what a person can do as a result of the training (the outcome), and as such represents a shift away from an emphasis on the process involved in the training (the inputs). The purpose of this book is to provide a clear roadmap on how to develop competency based curricula based on Occupational Standards. It provides guidelines for the process of using the competencies and performance criteria established in the OS to specify the learning outcomes and assessment criteria of the curriculum. Aspects of existing international practice that would work in the Kenyan and other developing countries context have been identified and a methodology and new format for national OS and for curricula that is user-friendly, high quality, pragmatic and resource efficient. Occupational Standards (OS) are excellent tools for making the TVET system responsive to the demands of the economy.