What are these markings ? (2017 ram)

I can remember back when I worked at Warren Truck when an item was detected in what they called the "audit hole" that's where the trucks were looked over and inspected by the corporate auditors, if they found something say like a unlocked coil wire connection then the responsible department "in this case the engine line" would assign a worker to check them 100% and mark them with a chalk line of some sort to show they were inspected and locked. This would go on for the remainder of the shift and if no more were detected then it would be done with, if another one was found this marking could go on for a while. Even today sometimes you will find these marks on certain items on the new vehicles.