I re-sat my ACS in April and as Townfan says There is now two classifications of AR! and the full removal of NCS.
But & This is quoted from my nice new shiny book "That said for those who feel uneasy with this stance, the recording of NCS issues may still be undertaken, but by using the businesses own internal documentation/procedures & using their own engineering judgement on the advice to give".
The second procedural change sees the introduction of a new and second AR classification for those gas installations, which have the potential to be unsafe but where turning-off the affected installation WILL NOT remove the danger. These scenarios will be rare but where encountered gas operatives' need to classify the installation as:
'AR' but DO NOT turn-off the gas installation.
DO NOT attach a warning Label.
DO complete a warning notice.
Do advise the responsible person to contact either there gas supplier or the National Emergency Service Provider (ESP).
So looking at the first post I would be thinking "Hmmm unsleeved gas pipe, well that's now an AR classification so which AR is it? OK if I turn off the Appliance/installation is the risk removed? Err scratch of head Errrr... Well yes if I turn it off then the risk is removed, so I follow the AR procedure that is where an appliance/installation which if operated or left connected to the gas supply MAY IN THE FUTURE CONSTITUTE A DANGER.
So then I explain the situation to the customer stating it is AR, The appliance/installation MUST NOT BE USED until the situation has been rectified & with their permission either repair there & then. Or if it cannot be repaired immediately then affix a DO NOT USE label, Turn off the appliance/installation & complete a warning notice, ask customer to sign it to prove you turned it off & leave a copy on site. If customer refuses to sign or refuses to let you turn off the appliance/installation record this on your notice and leave the site. You do not however remove fuses or cap off the supply for AR, just simply turn off the appliance or the ECV. record it and leave. If they choose to turn it back on after you have left then so be it, you have done all you are legally obliged to do and that's all you can do for an AR situation.