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Public consultation on ONR's interpretation of 'bulk quantities' of radioactive matter - supplementary

In 2011 The Office for Nuclear Regulation (ONR) consulted on its proposed approach to the definition, in relation to storage of radioactive matter, of "Bulk Quantities"  for the purposes of section 1(1)(b) of the Nuclear Installations Act 1965 and the Nuclear Installations Regulations 1971. The consultation ended on 12th December 2011.

After careful consideration of the comments received, ONR is considering amending its proposal in the Interim Position Statement in one key respect.

Under the original proposal, ONR would have considered that an installation was designed or adapted to store a bulk quantity of radioactive matter if it was designed or adapted to store a quantity of such matter at or above 100x the levels set out in Schedule 2 to Radiation (Emergency Preparedness and Public Information) Regulations 2001 (REPPIR).

We are now considering a revision to this approach to broaden our interpretation of bulk quantities for this purpose.

This consultation paper sets out ONR’s revised approach, the reasons for change and seeks views on the changes that ONR is considering.

ONR will publish a final response to both consultation exercises after consideration of the responses to this supplementary consultation.

  • View the consultative document and accompanying documents:
  • View the original consultation which ended on 12 December 2011.


This consultation began on 13 June and ended on July 25 2012.

Julie Wareing
Health and Safety Executive
Communications Account  Manager
ONR - Communications Team
Desk 10, 4S.3 Redgrave Court
Merton Road
L20 7HS
Tel No: 0151 951 5742
Fax: 0151 951 4004
Updated 2019-04-30