Core Points - The National Railway Administration has officially released six new national standards for railway safety and technology, which are crucial for the design, manufacturing, inspection, and application of railway products [1][2][3][4]. Group 1: Safety Control Systems - The "Safety Control System for Power Supply Operations in Rail Transit" (GB/T45659-2025) outlines the operational conditions, system composition, functional and performance requirements, testing methods, and inspection rules for urban rail transit power supply systems, filling a gap in safety management for rail transit [1]. Group 2: Traction Power Supply Systems - The "AC 25kV Traction Power Supply Device" (GB/T45658-2025) specifies the usage conditions and technical requirements for AC 25kV traction power supply systems, enhancing power supply safety and improving train operation efficiency [2]. Group 3: Testing Methods for Rolling Stock - The "Testing Methods for Rolling Stock Before Commissioning" (GB/T44991-2025) establishes testing requirements and methods for various types of rolling stock, providing a unified standard to enhance product quality and ensure transportation safety [2]. Group 4: Network Time Synchronization - The "Technical Requirements for Network Time Synchronization in Rail Transit Vehicles" (GB/T45308-2025) sets forth requirements for time synchronization in train communication networks, crucial for accurate information exchange and fault location [3]. Group 5: Hybrid Power Systems - The "Hybrid Power System with Onboard Energy Storage for Rail Transit Vehicles" (GB/T45306-2025) details the connection relationships and testing methods for hybrid power systems, supporting manufacturers in the production and evaluation of these systems [3]. Group 6: Communication Network Testing - The "Testing Methods for Train Communication Networks Based on Twisted Pair Bus" (GB/T28029.13-2025) provides guidelines for testing the performance of train communication networks, addressing the need for performance acceptance standards for new train designs [4].