Hi Fryers, If you read the new IET code of practice, edition 4 that came out last November, all retesting is done by risk assessment. It depends on type and class of item, location, whos using it, previous PAT test history, how likely staff or users are liable to report a problem. Thers a few other bits in there as well. Bearing in mind the code is only a guide, it says you dont put a retest date on the stickers anymore either. What I have done on my last few jobs is make a susgested retest sched and told the duty holder that the final descision is up to them if they think it should be done more or less often.