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The RAP report presents dose conversion coefficients for each of the RAP geometries which have been estimated using the methodology developed for the ERICA Tool. A large component of the draft ICRP report comprises a review of radiation effects data for nonhuman species. This is used to suggest a derived consideration reference level' (DCRL) for each RAP. The DCRL DCRLs are described as a band of dose rate within which there is likely to be some chance of deleterious effects of ionising radiation occurring to individuals of that type of Reference Animal or Plant, derived from a knowledge of defined expected biological effects for that type of organism that, when considered together with other relevant information, can be used as a point of reference to optimise the level of effort expended on environmental protection, dependent upon the overall management objectives and the exposure situation.