Guidance

Diagnostic radiology: national diagnostic reference levels

Details of the national diagnostic reference levels (NDRLs), for clinicians using radiation in medicine.

Documents

Details

These tables give the national diagnostic reference levels for common X-ray examinations for patients.

NDRLs from previous years can be viewed on the UK Government Web Archive:

NDRLs from 15 November 2018 to 18 August 2019

NDRLs from 22 January 2016 to 14 November 2018

Published 22 January 2016
Last updated 19 August 2019 + show all updates
  1. Added information on new NDRLs for dental radiography, and provided archive links to previous NDRLs.

  2. Added new data for NDRLs.

  3. First published.