This guidance note is designed for use by land, engineering and measured building surveyors who are acting in an advisory capacity and by survey knowledgeable clients who specify their own surveys.

This 3rd edition represents a complete review of the 1997 edition and supersedes the 2nd edition. One of the primary changes from the 2nd edition is the use of survey accuracy band, which takes into consideration client requirements for scale independent metadata and digital data handling environments.

This guidance note includes information on:

• Project information
• Survey accuracy, control, coordinate grid and datum
• Topographic surveys
• Measured building surveys
• Underground utility surveys
• Monitoring and deformation
• Deliverables