Exclusion from the scope
Article 3
This Directive shall not apply to: (a) exposure to the natural level of radiation, such as radionuclides contained in the human body and cosmic radiation prevailing at ground level; (b) exposure of members of the public or workers other than air or spacecrew to cosmic radiation in flight or in space; (c) aboveground exposure to radionuclides present in the undisturbed earth's crust.