The Common Safety Orientation (CSO) is a new program created by ESC (Energy Safety Canada) to replace the BSO (Basic Safety Orientation) and the EGSO (Electronic General Safety Orientation), and the PST (Petroleum Safety Training). CSO is a singular safety orientation for new employees in the oil and gas field. It introduces them to workplace safety best practices. Seeking to eliminate duplicate training, employees taking this program can move between job sites easily.