The Information System on Occupational Exposure (ISOE) was created in 1992 to provide a forum for radiological protection professionals from nuclear electricity utilities and national regulatory authorities worldwide to discuss, promote and co‑ordinate international co-operative undertakings for the radiological protection of workers at nuclear power plants.

The objective of the ISOE is to improve the management of occupational exposure at nuclear power plants by exchanging broad and regularly updated information, data and experience on methods to optimise occupational radiological protection.

Download the  pdf ISOE Brochure (958 KB)

 ISOE Members

Membership in ISOE includes representatives from nuclear electricity utilities and national regulatory authorities.
As of January 2017, there are 77 utilities in 29 countries, as well as 28 regulatory authorities of 26 countries participating to the system.

 ISOE Database

The ISOE database itself includes occupational exposure information for about 400 operating units and 80 shutdown units or in some stage of decommissioning in 29 countries, covering about 90% of the world’s operating commercial power reactors.

ISOE is jointly sponsored by the:

  • OECD Nuclear Energy Agency (NEA), and
  • International Atomic Energy Agency (IAEA).

 ISOE Structure

ISOE operates in a decentralised manner. A Management Board of representatives from all participating countries, supported by the joint NEA and IAEA Secretariat, provides overall direction.

Four ISOE Technical Centres (Europe, North America, Asia and IAEA) manage the programme’s day-to-day technical operations, serving as contact point for the transfer of information from and to participants.

 ISOE Products and benefits

ISOE is the world's most comprehensive source of experience and information for occupational exposure management at nuclear power plants, and offers its members a variety of resources for occupational exposure management.

 ISOE Bureau, as of 2016 Management Board

Chairman of the ISOE System
Brazil Marcos Antônio DO AMARAL
SBPR – Sociedade Brasileira de Proteção Radiologica
Phone: +55 44 3031 2088 / +55 44 9 9182 0563
Chairman elected
United-Kingdom Guy RENN
Sizewell B NPP
Phone: +44 1728 653183
United-Kingdom Grant INGHAM
Office for Nuclear Regulation (ONR) .
Phone: +44 151 951 4078
South Korea Tae-Won HWANG
KHNP Central Research Institute
Phone: +82 42 870 5780