BSI Flex 1969 v1.0:2025-03

You can download a DRM-free copy of this standard here.

BSI Flex 1969 v1.0 is now open for public consultation. We invite you to share your views, which will help shape the future direction of this important space sustainability standard.

Have your say by 27 June 2025 >

The standard sets out the Space Sustainability Principles—a high-level framework for responsible and sustainable space activities. These principles recognize the scientific, economic, cultural, and individual value of our diverse relationship with space, the Moon and other celestial bodies.

With a holistic, end-to-end approach, BSI Flex 1969 v1.0 addresses the full lifecycle of space activities—from raw material sourcing to end-of-life disposal. It aligns with international life cycle standards (BS EN ISO 14040 and BS EN ISO 14044) to meet the sustainability expectations of the finance and insurance sectors.

The standard is sponsored by the UK Space Agency and was developed with extensive input from a cross-industry Advisory Group.

The first version of the standard gives guidance on promoting and facilitating national and international engagement with, and the understanding and management of, the long‑term sustainability of outer space activities.

It seeks to do this through the establishment of 11 transparent space sustainability principles of responsible behaviour.

The Space Sustainability Principles promote measures to limit further environmental impacts—such as space debris, waste, and pollution—while also supporting efforts to remedy the damage already done.

BSI Flex 1969 v1.0 provides a unifying framework for these activities, enabling cross-sector collaboration and fostering a shared understanding of responsible space activity management. By aligning your practices with this standard, you help protect the long-term usability of space and demonstrate your commitment to sustainable and ethical space operations.

BSI Flex 1969 v1.0 is of use, but not limited, to anyone involved in space activities, including manufacturers, service providers, operators, and academics.

It might be of interest to space-emerging countries interested in space sustainability and space-faring nations, as well as international organizations and standards bodies.

Download a free copy of the standard here.