Ultrasound personnel certified to Category III are expected to have all the knowledge and capabilities of a Category I and II analyst and be able to apply ultrasound theory and techniques, including measurement and interpretation of survey results. They can understand and perform data analysis, determine the ultrasound data acquisition systems and component assemblies required, use non-standard techniques for ultrasound monitoring and fault diagnosis and interpret and evaluate standards, codes, specifications and procedures. Additionally, they can develop and establish ultrasound programmers, procedures and instructions, determine severity assessment acceptance criteria and measure and perform more advanced diagnosis and prognosis of ultrasound signal analysis. Furthermore, in addition to making recommendations for the use of alternative or supplementary condition monitoring technologies, they are also able to provide guidance to and supervise Category I and II personnel.