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Air conditioning systems rated greater than 250kw should already have been inspected by an Accredited Inspector before 9th January 2009.

The new regulations require air conditioning systems over 12kw to have been inspected by 4th January 2011. However, if the system was put into service after 1st January 2008, then the 1st inspection must be undertaken within 5 years of that date and then every 5 years thereafter.