I have visited several gas plants across the U.S. Gas plants are complex facilities. They operate at pressure with flammable materials and dangerous products. Gas plants are regulated by Process Safety Management standards to address the inherent hazards of operations.
When visiting gas plants, I make it a habit to stop in the control room and the maintenance office and engage operations folks in conversation. One thing I like to ask is if the operators can show me the procedure for whatever operation is being done at the time. From there, it’s a discussion about how the procedures are used (or not), who wrote the procedures, whether or not the procedures work and how they are revised.