2/2/2001 - Change CPC. V.1.0 code 83530 to read:
Surface surveying services
This subclass includes:
- gathering services of information on the shape, position and/or boundaries of a portion of the earth's surface by different methods, including transit, photogrammetric and hydrographic surveying, for the purpose of preparing maps
- collection of data by satellite
- land surveying services (e.g. marking of property, boundary marking)