ESSI’s Memorandum of Principles for Space Sustainability: full signatory list published

The ESSI logo showing satellites pointing downwards towards Earth
Category: Policy Making, Industry, Public


The Earth & Space Sustainability Initiative (ESSI) has today published the entire list of signatories to its Space Sustainability Principles. The list totals 130 companies, organisations and individuals. It can be viewed here.


ESSI’s Memorandum of Principles for Space Sustainability was a centrepiece of the launch of the initiative on 28 June 2023. It outlines the importance of space to society as a whole and splits the concept of space sustainability into nine strands that the Space Sustainability Principles (SSPs) will cover. Read the text of the Memorandum here.


The ESSI team is now beginning to draft the SSPs. While the content remains identical to the Memorandum, the strand on Dark and Quiet Skies will be separated into two from now on, and the Spectrum Sustainability work will be moved into the new strand on Spectrum Sustainability and Quiet Skies.


The split means that from now on there will a total of ten SSPs. The industry and academic leads for the work on the Principles will shortly be appointed and then a wider industrial consultation will take place in mid-September. ESSI is also in advanced negotiations with the British Standards Institute (BSI) who will help turn these SSPs into industrial standards.


“The level of engagement that has been shown with the Memorandum of Principles is remarkable. What an excellent way to kick-off wide engagement in drafting the Space Sustainability Principles,” says Joanne Wheeler, Director of ESSI.


It has placed ESSI in a leading position from which to begin the ongoing national and international collaboration, across different sectors, and different disciplines and most importantly of all achieving practical results.


 “It’s fantastic to see 130 organisations signing up to, and engaging with, ESSI's Memorandum of Principles, demonstrating the UK space sector’s shared commitment to driving the safe and responsible use of space, both now and for future generations,” says Ray Fielding, Head of Sustainability at the UK Space Agency, “These Principles are pivotal to our ambition to become a world leader in space sustainability regulation, which will ultimately help make the UK a more attractive place in which to operate, invest and grow.”


ESSI is funded by the UK Space Agency.

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