Thank you for viewing. This is the 39th revised edition of the regulations concerning the assurance of safety and the proper transactions of liquefied petroleum gas (excluding appliance-related ministerial ordinances). It contains information useful for obtaining qualifications. It was used in safety officer qualification training. Please refrain from purchasing if you are concerned about the condition due to its use. ● Writing/Marking: Yes ● Page folds/tears: None ● Scratches and some scuffs on the main body ※ Price negotiation possible