This is "Wakareru AI/DD Zen Shikaku [Houki]" (Understandable AI/DD All Qualifications [Regulations]) for the Certified Engineer of Telecommunications qualification AI/DD General Class. It has been used for qualification study, so there is some scuffing on the cover and corners, and overall signs of use. (Please check the photos.) There are no written notes or major tears. It can be used for studying without any problems. ■ Contents ・Telecommunications Business Act ・Regulations for Certified Engineers of Telecommunications ・Regulations for Terminal Equipment, etc. and others Recommended for those who want to study regulations in an organized way, or as a review before the exam. Please only purchase if you understand that this is a used item.