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GB/T 45737-2025Pre-launch space debris mitigation review requirements (English PDF)

发射前空间碎片减缓审查要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 30, 2025

Implementation date

September 1, 2025

Scope

GB/T 45737-2025 is the English-translated version of 发射前空间碎片减缓审查要求.

GB/T 45737-2025 is the Chinese national standard covering what has to be declared and checked before a launch is approved — for the launch vehicle and for the spacecraft alike, the limits on operational debris released in normal flight, the measures against on-orbit break-up, the post-mission deorbit and the passivation that empties tanks and batteries so a dead stage cannot explode years later, the collision avoidance provision, the re-entry safety analysis, and the review and approval requirements themselves. First edition, with the collision warning standard GB/T 45740-2025. In force from 1 September 2025. Issued on 30 May 2025, it has been in force since 1 September 2025.

Document preview — GB/T 45737-2025

National Standard of the People's Republic of China

ICS: 49.140
Classification: V 70

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 General Requirements2
4.1 Overview2
4.2 Main review points2
4.3 Review Basis2
4.4 Review and approval requirements3
5 Requirements for review of space debris mitigation measures for launch vehicles3
5.1 Basic Information of Launch Project3
5.2 Limiting the release of operational fragments4
5.3 Preventing on-orbit disintegration4
5.4 Post-mission deorbit disposal5
5.5 Post-mission passivation6
5.6 Space debris collision avoidance and on-orbit maneuvers6
5.7 Reentry Safety Analysis6
6 Requirements for review of space debris mitigation measures for spacecraft7
6.1 Basic Information of Launch Project7
6.2 Limiting the release of operational fragments8
6.3 Preventing on-orbit disintegration8
6.4 Post-mission deorbit disposal9
6.5 Post-mission passivation treatment10
6.6 Space Debris Collision Avoidance and On-Orbit Maneuvers10
6.7 Reentry Safety Analysis11
Reference14

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed and coordinated by the National Technical Committee for Standardization of Aerospace Technology and Its Applications (SAC/TC425).

This document was drafted by: National Astronomical Observatory of the Chinese Academy of Sciences, China Institute of Space Standardization, China Great Wall Industry Corporation, Major Special Engineering Center of the State Administration of Science, Technology and Industry for National Defense.

The main drafters of this document are: Liu Jing, Zhang Yao, Li David, Quan Haofang, Li Xiaolong, Gao Jun, Tang Menghui, Jiang Hai, Yang Xu, Cheng Haowen, Gan Qingbo, Zhao Nanying and Zhang Jia.

Pre-launch Space Debris Mitigation Review Requirements

1 Scope

This document specifies the technical requirements for space debris mitigation review and compliance assessment of spacecraft and launch vehicles before launch.

Requirements mainly include limiting the release of operational debris, preventing on-orbit disintegration, post-mission deorbit disposal, post-mission passivation disposal, and space debris collision.

Avoidance and on-orbit maneuvers, re-entry safety analysis, etc.

This document applies to the declaration and review of the implementation of space debris mitigation measures taken by spacecraft and launch vehicles.

2 Normative references

GB/T 32308-2015

GB/T 32455-2024

GB/T 34513-2017

GB/T 43224-2023

GB/T 45621

GB/T 45740-2025

3 Terms and definitions

Terms defined in GB/T 34513-2017, GB/T 43224-2023, GB/T 45621, GB/T 32455-2024 and the following terms and definitions apply to this document.

3.1 measures to address adverse impacts on the long-term sustainability of activities

In order to reduce the impact of space debris generation, long-term orbiting or reentry on the flight safety of on-orbit spacecraft and launch vehicles or on the outer space

3.2 Operational Debris

Objects that are separated or released into orbit during normal spacecraft operation according to design requirements.

Note 1.Adapters, connectors, protective devices or other parts are considered operational debris.

Note 2.Spacecraft and launch vehicle orbital stages have complete structures and are not considered operational debris.

Note 3.The slag ejected during the combustion of solid rocket motors and the liquid released from spacecraft are not considered operational debris.

3.3 de-orbit

After the mission is completed, the spacecraft or launch vehicle leaves the original orbit and enters a lower orbit to re-enter the atmosphere or leave the protection as soon as possible.

The process of maneuvering flight in which the area enters the prescribed grave orbit.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 32308-2015 · GB/T 34513-2017 · GB/T 43224-2023

Editions of GB/T 45737

Edition	Title	Revision	Status
GB/T 45737-2025	Pre-launch space debris mitigation review requirements	current edition	Current

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