The TRUD page lists "Open Government Licence for TRUD" as the applied licence and links to the National Archives Open Government Licence (OGL). It notes that an open TRUD account is needed to use the content and recommends notifying NHS Digital of errors and tracking uses for updates.
The OGL v3.0 terms provide a worldwide, royalty-free, perpetual, non-exclusive licence to copy, publish, distribute, transmit, adapt, and commercially or non-commercially exploit the information, provided the source is acknowledged.
OGL obligations require attribution to the information provider and inclusion of a link to the licence, with a default statement (“Contains public sector information licensed under the Open Government Licence v3.0”) when none is supplied.
Exemptions include personal data, logos/crests, third-party rights the provider cannot license, and non-endorsement requirements.
oct terminology data is licensed under CC BY 4.0. Both OGL v3.0 and CC BY 4.0 are attribution licences that permit copying, adaptation, redistribution, and commercial use with proper credit. The permissions and obligations align closely, making OGL v3.0 content suitable for incorporation into a CC BY 4.0 dataset when attribution is preserved.
Additional TRUD usage guidance (maintaining an open account, reporting errors) does not restrict downstream reuse of OGL-licensed content once obtained. However, we should maintain provenance records and preferred attribution supplied by NHS Digital to satisfy OGL requirements.
OGL’s non-endorsement and logo exclusions match oct’s existing stance on trademarks; we must avoid implying NHS endorsement and omit any protected branding.