The four UK HE funding bodies recently held three ‘good practice’ workshops to support HEIs in developing their code of practice. The slides from these workshops are now available on the REF website:http://www.ref.ac.uk/events/codes-of-practice-workshops-february-2019/
You can also read a blog by Professor Karl Dayson, who spoke at two of the workshops on the University of Salford’s approach to identifying staff with significant responsibility for research https://re.ukri.org/blog/defining-significant-responsibility-for-research/