Releases of this item contain the OPCS-4 eVersion book, an electronic copy of OPCS-4 for use with the eViewer application.
Install the latest release of the eViewer application before downloading releases of this item.
Find instructions for adding the eVersion book to the eViewer in the installation guide included in the eViewer releases.
Released on 3 February 2023.
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Released on 23 January 2017.
Released on 29 January 2016.