This is the "Liquefied Petroleum Gas" textbook for the High-Pressure Gas Manufacturing Safety Supervisor training course. I am selling it because I no longer need it. There are no writings or severe stains, but there are some scratches and stains from use. [Product Name] Outline of the High-Pressure Gas Safety Act, Class C Chemical Liquefied Petroleum Gas, Revised Edition High-Pressure Gas Safety Regulations Collection Liquefied Petroleum Gas Safety Operations Personnel Training Textbook Liquefied Petroleum Gas Safety Assurance Regulations Collection If you are interested or want to know more, please contact me before purchasing. #HighPressureGas #ClassC #ClassCChemical #LiquefiedPetroleumGas #RegulationsCollection #SafetySupervisor #SafetyPersonnel #Training