[en] The explanations can be summarized in ten guiding lines: 1. The dose limits of the Radiation Protection Ordinance protects third parties. Private plaintiffs can claim its observance in an administrative lawsuit. 2. When calculating each radiation exposure, all exposure pathways have to be considered. 3. When calculating the radioactivity level during normal operation conservative assumptions have to be taken as a basis. 4. When calculating the radioactivity level resulting from design basis accidents it can be referred to realistic assumptions. 5. For improving legal security when calculating the radioactivity level it is necessary to lay down the radio-ecological assumptions and procedures in statutory ordinances. 6. Radioactivity levels below the dose limits have to be assigned to the residual risk. 7. The demand to reduce radiation exposure the minimum laid down in number 2 of sub-section 1 of section 28 of the Radiation Protection Ordinance and repeated in sentence 1 of sub-section 3 of section 28 and of sentence 1 of section 45 does not protect third parties. 8. Measures to reduce the residual risk can only be required by public authorities and consultants. 9. The hypothetical accidents are part of the residual risk due to the small probability of occurring. 10. The measures to prevent damages required according to number 3 of sub-section 2 of section 7 of the Atomic Energy Law are realized among others by the design of a nuclear power plant against design based accidents. They are or will be scheduled in the safety engineering rules and guiding lines of the Federal Ministry of Internal Affairs. (orig./HP)