Standard No.:	GB 24407-2025
English Name:	Safety technical specifications of special school bus
Chinese Name:	专用校车安全技术条件
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR, SAC
Issued on:	2025-12-31
Implemented on:	2027-7-1
Status:	to be valid
Superseding:	GB 24407-2012 The safety technique specifications of special school bus
Target Language:	English
File Format:	PDF
Word Count:	18500 words
Translation Price(USD):	555.0
Delivery:	via email in 1~5 business day

GB 24407-2025 Safety technical specifications of special school bus English, Anglais, Englisch, Inglés, えいご This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered. ICS CCS H National Standard of the People's Republic of China ‌GB 24407-2025 Safety technical specifications of special school bus 专用校车安全技术条件 Issue date: 2025-12-31 Implementation date: 2027-01-01 Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China the Standardization Administration of the People's Republic of China Contents Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification of Special School Bus Types 5 Technical Requirements 5.1 Appearance Markings and Main Structural Dimensions 5.2 Power Performance 5.3 Occupant Mass and Maximum Occupant Number 5.4 Steering System 5.5 Braking System 5.6 Transmission System 5.7 Running Gear System 5.8 Front and Rear Bumpers 5.9 Lateral Roll Stability 5.10 Body Structure and Strength 5.11 Exits, Steps, Access Ways, and Aisles 5.12 Interior Layout 5.13 Signal System 5.14 Fire Prevention and Fire Control Measures 5.15 Driver's Field of Vision 5.16 Interior Air Quality 5.17 Travel Information Recording and Processing System 5.18 Rear Panel Stopping Warning Marking 6 Determination of the Same Type 7 Implementation of the Standard Annex A (Normative) Test Method for Roof Structure Strength A.1 Test Conditions A.2 Test Procedure Annex B (Normative) Stopping Signal Plate B.1 Installation Requirements B.2 Technical Requirements B.3 Control Requirements Annex C (Normative) Driver's Field of Vision Requirements and Test Method C.1 Field of Vision Requirements C.2 Test Conditions C.3 Test Method Bibliography Technical Requirements for Special School Buses 1 Scope This document specifies the classification of special school bus types, technical requirements, determination of the same type, and implementation of the standard. This document applies to special school buses. 2 Normative References The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB 5768.2-2022 Road Traffic Signs and Markings — Part 2: Road Traffic Signs GB 8410-2006 Flammability of Automotive Interior Materials GB/T 12428 Calculation Method for Bus Loading Capacity GB 12676-2014 Technical Requirements and Test Methods for Braking Systems of Commercial Vehicles and Trailers GB 13057 Strength of Bus Seats and Their Anchorages GB 13094 Safety Requirements for the Construction of Buses GB/T 13594 Performance Requirements and Test Methods for Anti-lock Braking Systems of Commercial Vehicles and Trailers GB 13954-2009 Warning Lights for Police Cars, Fire Engines, Ambulances, and Engineering Rescue Vehicles GB 14166 Seat Belts and Restraint Systems for Motor Vehicle Occupants GB 14167 Anchorages for Seat Belts and Restraint Systems for Motor Vehicle Occupants GB/T 14172 Bench Test Method for Static Lateral Roll Stability of Motor Vehicles, Trailers, and Articulated Vehicle Combinations GB 15083 Strength Requirements and Test Methods for Automotive Seats, Seat Anchorages, and Head Restraints GB 15084 Motor Vehicles — Indirect Vision Devices — Performance and Installation Requirements GB 17578 Requirements and Test Methods for the Strength of the Superstructure of Buses GB/T 17729 Requirements and Test Methods for Air Quality Inside Intercity Coaches GB/T 18833-2012 Retroreflective Sheeting for Traffic Control GB/T 19056 Automotive Travel Data Recorders GB 24315 Markings for School Buses GB 24406 Strength of Student Seats and Their Anchorages in Special School Buses GB 24545 Technical Requirements and Test Methods for Vehicle Speed Limitation Systems GB 30678 Safety Signs and Informational Symbols for Buses GB 34655 Requirements for Fire Extinguishing Equipment Installation on Buses GB/T 38186 Performance Requirements and Test Methods for Advanced Emergency Braking Systems (AEBS) of Commercial Vehicles GB 38262 Flammability of Bus Interior Materials GB/T 38796 Performance Requirements and Test Methods for Tyre Blow-out Emergency Safety Devices for Motor Vehicles GB/T 44038 Requirements and Test Methods for Vehicle Reversing Audible Warning Devices 3 Terms and Definitions For the purposes of this document, the terms and definitions given in GB/T 12428 and GB 13094, and the following apply. 3.1 special school bus A special-purpose passenger vehicle specifically designed, manufactured, and technically characterized for the organized transportation of preschool children above 3 years of age or students in compulsory education. [SOURCE: GB/T 3730.1-2022, 5.6.1] 3.1.1 special school bus for infants A special school bus for transporting preschool children above 3 years of age. 3.1.2 special school bus for primary students A special school bus for transporting primary school students. 3.1.3 special school bus for primary and junior middle school students A special school bus for transporting students in compulsory education (primary school and junior middle school students). 3.2 stopping signal plate A sign used to warn other vehicles not to overtake a stopped school bus that is waiting for students to board or alight. 3.3 occupants The collective term for passengers, driver, and attendants on a special school bus. [SOURCE: GB/T 12428-2023, 3.1, modified] 3.4 mass of the vehicle in running order The mass of the special school bus in a drivable state without passengers or luggage. NOTE: Includes the unladen kerb mass, and the mass of the driver and attendant(s). [SOURCE: GB 13094-2025, 3.20, modified] 4 Classification of Special School Bus Types The classification and basic characteristics of special school buses based on vehicle structure and purpose are shown in Table 1. 5 Technical Requirements 5.1 Appearance Markings and Main Structural Dimensions 5.1.1 The appearance markings of a special school bus shall comply with the provisions of GB 24315. It is permissible for the school bus number not to be painted on the bus upon leaving the factory. 5.1.2 A special school bus shall be equipped with a frontal crash safety structure at the front. For a front transverse engine layout, the crankshaft centerline shall be located ahead of the foremost point of the front windshield. For a front longitudinal engine layout, the centerline between the first and second cylinders shall be located ahead of the foremost point of the front windshield. If the frontal crash performance of a large or medium special school bus is not inferior to the aforementioned two structures, the engine layout is not restricted. NOTE: The centerline between the first and second cylinders refers to the midpoint of the line connecting the centers of the first and second cylinders. 5.1.3 A special school bus shall not be an articulated bus or a double-deck bus. 5.1.4 The overall height of a special school bus shall not exceed 3.5 m. 5.1.5 If there are side luggage compartments, the height from the top of the luggage compartment to the ground shall be less than 1.0 m. 5.1.6 A special school bus shall not be equipped with an external roof rack. 5.1.7 There shall be no holes or gaps inside or outside the special school bus that could trap the fingers of infants or primary school students. There shall be no protrusions, indentations, sharp corners, or other defects that could cause injury. 5.2 Power Performance