History and mandate
UNSCEAR was established by the General Assembly of the United Nations in 1955. Its mandate in the United Nations system is to assess and report levels and effects of exposure to ionizing radiation. Governments and organizations throughout the world rely on the Committee's estimates as the scientific basis for evaluating radiation risk and for establishing protective measures. >>more
The General Assembly has designated 27 countries to provide scientists as members of the Committee. >>more
The Committee, at its 61st session, agreed on governing principles for the Committee's work.
The Committee, at its 63rd session, agreed on strategic directions for the Committee's work beyond 2019.
Since its inception, UNSCEAR has issued 25 major publications. These authoritative reports are principal sources of information. >>more
Programme of work
The Committee's programme of work is approved by the General Assembly, and extends typically over a 4-5 year period. The secretariat collates relevant data submitted by UN Member States, international organizations and non-governmental organizations, and engages specialists to analyse those data, to study relevant scientific literature and produce scientific evaluations. The secretariat submits the evaluations annually for scrutiny to each session of UNSCEAR, and at the end of the cycle, the substantive reviews are published.
The Committee has held sixty-three annual sessions so far. The sixty-fourth session is scheduled to take place in Vienna from 29 May to 2 June 2017. >>more
The small secretariat in Vienna, which is functionally linked to the United Nations Environment Programme (UNEP), organizes the annual sessions and manages the preparation of documents for the Committee's scrutiny.