North American Product Classification System (NAPCS) Canada [Provisional Version 0.1]

• 54 - Professional, scientific, and technical services
• 541034 - Surveying and mapping services
• 541034.11 - Integrated surveying and mapping services

541034.11.5 - Geodetic surveying and ground control support

Surveying for the purpose of determining the precise horizontal and/or vertical position of points or monumented locations to provide a reference framework for further surveys. Includes ground control support.