See http://www.hse.gov.uk/pubns/indg232.pdf Depends on the sort of reps ie Union Reps under the 1977 regulations or other reps under the 1996 regs.

they don't have a job, just srsc regs 1977 or the 96 as stated. What do you want them to do?

hi, not union members. So not going the union route. Looking to recruit local safety reps to raise SHE profile within the organisation.

Point to note: 'safety reps' or 'representatives of safety' under current UK regulations do not have duties imposed upon them (meaning they cannot be held responsible) the have 'functions'. I guess this does not stop organisations creating job description if they so wish to do so. However, this may cause confusion between HR and H&S laws. My advise here is to stick with the function of the reps as per the regulations and do-not create a job description or alternatively create a safety job for the person in which you can then give then responsibilities in the job description but dont call them safety rep's. I hope this makes sense.