ERA guide for application of the Common Safety Methods ... - Europa

European Railway AgencyGuide for the application of the CSM Regulation 2.3.5. If one or more hazards are controlled by codes of practice fulfilling the requirements ofpoint 2.3.2, then the risks associated with these hazards shall be considered asacceptable. This means that:(a) these risks need not be analysed further;(b) the use of the codes of practice shall be registered in the hazard record as safetyrequirements for the relevant hazards.[G 1] The hazards and associated risks that are covered by the application of codes of practice areimplicitly considered as acceptable, provided the conditions of application of codes ofpractice in section 2.3.2 are fulfilled. This means that explicit risk acceptance criteria neednot be defined for the hazards controlled by this principle.[G 2] The demonstration that the system under assessment complies with the related codes ofpractice is performed according to section 3.2.3.6. Where an alternative approach is not fully compliant with a code of practice, theproposer shall demonstrate that the alternative approach taken leads to at least thesame level of safety.[G 1] If one or more conditions from the code of practice are not fulfilled by the system underassessment, the related code of practice can still be used for controlling hazards providedthe proposer demonstrates that at least the same level of safety is achieved.2.3.7. If the risk for a particular hazard cannot be made acceptable by the application of codesof practice, additional safety measures shall be identified applying one of the two otherrisk acceptance principles.[G 1] This may also occur when it is discovered that the related code of practice does notsufficiently cover the identified hazards, e.g. the code of practice is not applicable to the fullrange of hazards. Then for these hazards either other codes of practice or one of the othertwo risk acceptance principles needs to be used for controlling the associated risks (see alsopoint [G 1] in section 2.3.1).2.3.8. When all hazards are controlled by codes of practice, the risk management process maybe limited to:(a) The hazard identification in accordance with section 2.2.6;(b) The registration of the use of the codes of practice in the hazard record inaccordance with section 2.3.5;(c) The documentation of the application of the risk management process in accordancewith section 5;(d) An independent assessment in accordance with Article 6.[G 1] This text summarises in one section the different requirements in the CSM Regulation thatare to be fulfilled when all hazards of the system under assessment are controlled by codesof practice. Reference: ERA/GUI/01-2008/SAF Version: 1.1 Page 40 of 54File Name: Guide_for_Application_of_CSM_V1.1.docEuropean Railway Agency ● Boulevard Harpignies, 160 ● BP 20392 ● F-59307 Valenciennes Cedex ● France ● Tel. +33 (0)3 27 09 65 00 ● Fax +33 (0)3 27 33 40 65 ● http://www.era.europa.eu