Carefully with revolution in radiation protection

International Commission of Radiological Protection presents the thesis that there are no evidence for existing the threshold dose in low LET radiations interacting with human organism. The rule 'as low as reasonable achievable' should be applied in dose limits elaboration. In every case that process should be preceded by optimisation of costs of protection and exposition consequences. The new term 'controllable dose' introduced by ICRP can be alternative for up to date used term 'dose limit'. As a result of such analysis the level of some mSv/y ear seems to be sufficient for professional hazard