This unit specifies the skills and knowledge required to survey subsurface utility information (SUI) in surveying practice. It includes analysing utility plans from asset owners and using specialised locating equipment. The unit also includes applying surveying and computer-aided design (CAD) and drafting skills to define the corresponding surface location of subsurface utilities.This unit is suitable for skilled surveying technicians who use a broad range of cognitive, technical and communication skills to select and apply methods and technologies to analyse information and provide solutions to sometimes complex surveying/spatial information problems.Surveying and spatial information skills are applied in a range of industry contexts, including town planning, civil construction, mining, engineering, health, agriculture and defence.All work must be carried out to comply with workplace procedures, in accordance with relevant state/territory regulations that govern surveying work, as well as work health and safety (WHS) legislation and regulations that apply to the workplace.Cadastral surveying must be undertaken under the supervision of a registered surveyor. Users must check with the relevant regulatory state/territory authority before delivery. Licensing, legislative or certification requirements apply to this unit in some states and territories. This unit may also require adherence to AS 5488 Classification of subsurface utility information. Relevant state and territory regulatory authorities should be consulted to confirm these and any additional requirements.