The International Commission on Radiolovical Protection (ICRP) The ICRP originated in the Second International Congress of Radiolosy in 1928, It has been looked to as the appropriate body to give seneral vuilance on vridesuread wie of radiation sources caused “vy ranid developnents in the field of nuclear enerzy. ICRP recommendations deal with the basic principles of radiation protection. To the various national protection bodies is left the responsibility for introducing the detailed technical regulations, recommendations, or codes of practice best suited to their countries. Recormendations are intended to guide the experts responsible for radiation protection practice. ICRP states that the objectives of radiation protection are to prevent acute radifation effects and to linit the risks of late effects to an acceptable level. [It holds that it is unknown whether a threshold exists, and it is assumed that even the smallest doses involve a proportionately small risk. ‘lo practical alternative vas found to assuming a linear relationship between dose and effect. This implies that there is no wholly "safe" dose of radiation. =xposure to natural backrround radiation carries a probability of causing some somatic or hereditary injury. However, the Commission believes that the risk resulting from exposures received from natural background should not affect the justification of an additional risk from man-made exposures. Accordingly, any dose linitations recormended by the Commission refer only to exposure resultin; from technical practices that add to natural back- sround radiation, These Jose linitations exclude exposures received in the course of nedical procedures. (These sane qualifications srith resard to 114-04