The International Commission on Radiological Protection (ICRP) considers aircrew to be exposed to cosmic radiation on their jobs. They recommend effective dose limits of 20 mSv /year averaged over 5 years (that is, a total of 100 mSv in 5 years) for radiation workers and 1 mSv/year for the public. For pregnant radiation workers, the ICRP recommends a dose limit of 1 mSv throughout pregnancy. The National Council on Radiation Protection and Measurements has a 0.5 mSv recommended monthly radiation limit during pregnancy.

European Union member states require assessment of aircrew exposure when it is likely to be more than 1 mSv /year, and adjustment of work schedules so that no individual exceeds 6 mSv/year.