NRSC՛s representative participated in consultancy meeting held in Vienna from 20-24 April 2015. During the meeting, experts reviewed and discussed events reported to IRS in the period from 2012 to 2014. Total number of considered events is 254. After the screening 136 most interesting events were selected for Blue Book development. Selected events were grouped based on the related topic (human performance, fire, seismic hazard, ageing, etc.). During the meeting for each topic experts presented brief description of the events reported, safety significance and lessons learned. As a result of the meeting the draft version of Blue Book was developed. It is planned to publish Blue Book in 2016 after the review to be done by IAEA staff and national IRS coordinators.