# The Space Industry Regulations 2021, Regulation 135: Authorisation and prohibition on exposure


(1) No spaceflight operator may employ or otherwise engage an individual to perform duties as a crew member on a launch vehicle or carrier aircraft that would render the individual liable to receive an effective dose of cosmic radiation that exceeds 6 mSv in a calendar year unless the individual is a classified crew member (see regulation 142).
(2) No spaceflight operator may employ or otherwise engage an individual to perform duties as a classified crew member on a launch vehicle or carrier aircraft that would render the individual liable to receive an effective dose of cosmic radiation that exceeds 20 mSv in a calendar year (see regulation 142).

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Source: https://www.legislation.gov.uk/ukdsi/2021/9780348223682/regulation/135 (the official version)
Page: https://openlegislation.uk/draft-space-industry-regulations-2021/regulation-135
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.