enactment of the technical regulations for the railroad constituents 89 pages in korean background on the technical regulations for railroad constituents ulli regarding railroad constituents notified by the ministry of land infrastructure and transport molit manufacturer or his representative shall get type approval from molit for the newly-designed railroad constituents or remarkably modified constituents. also manufacturer shall obtain manufacturer approval from molit to enter into mass production for the type approved constituents railroad safety act article 27 and 27-2 . li ul - type approval is granted to the design for notified constituents that meets technical and safety requirements in the technical regulations. - manufacturer approval is production approval for the type approved constituents that manufacturer can meet quality management requirements in the technical regulations. ulli molit plans to enact technical regulations for the examination of type approval and manufacturer approval of 10 notified constituents. li ul technical regulations for railroad constituentsulli the technical regulations consist of generals part 1 applications part 2 3 notified vehicle constituents part 3 3 notified track constituents part 4 3 notified wayside signaling amp communication constituents part 5 electric railroad electric power part 6 and manufacturer approval regulation part 7 . li ul the generals part 1 contain definition of terms list of 10 notified constituent and their numbering and marking of type approval. the applications part 2 provide an applicant s qualifications assessment criteria certification documents and calibration report for type approval and manufacturer approval. the technical regulations for 10 notified railroad constituents prescribe conformity assessment and design requirements which include general requirements materials strength test interface with other constituents maintainability and etc. part 3 wheel axle coupler part 4 rail glued insulated rail pre-stressed concrete sleeper alignleft part 5 electronic interlocking system af audio frequency track-circuit automatic block system part 6 contact wire the technical regulation for manufacturer approval part 7 stipulates quality management requirements that manufacturer shall establish for mass production of type approved constituents which includes quality management system responsibility for quality control amp manufacturing execution production amp quality preservation and maintenance of quality management system.