UK National Diagnostic Reference Levels (NDRLs) have been published on gov.uk. These can be found here.
The NDRLs are based on the latest National Reference Doses (NRDs) previously published by PHE. The NDRLs will be regularly reviewed and updated by PHE, in collaboration with a working party on national dose surveys and DRLs with representation from PHE, the radiology professional bodies and the Department of Health. Data for future NDRLs will be considered from national dose surveys undertaken by PHE, and from other appropriate studies.
