http://www.legislation.gov.uk/uksi/2021/792/regulation/113The Space Industry Regulations 2021enSPACE INDUSTRYStatute Law Database2025-05-20Expert Participation2025-04-01 These Regulations implement the Space Industry Act 2018 (“the Act”) (c. 5) by putting in place a regulatory regime for spaceflight operations carried out in the United Kingdom. The Space Industry Regulations 2021 PART 8CHAPTER 5SECTION 3 113 1 A spaceflight operator must maintain adequate atmospheric conditions in the inhabited areas of the launch vehicle, or provide equipment to provide such conditions to each human occupant, by monitoring and controlling— a the composition of the atmosphere including oxygen, carbon dioxide and the need for revitalisation of the internal atmosphere, b pressure, temperature and humidity, c contaminants that include particles and any harmful or hazardous concentrations of gases or vapours, and d ventilation and circulation. 2 In this regulation “revitalisation” means a process by which the internal atmosphere of the inhabited parts of the launch vehicle is sustained at a healthy level, by introducing oxygen to replace the oxygen which has been consumed and by removing carbon dioxide. Reg. 113 in force at 29.7.2021, see reg. 1(1)