The Energy Performance of Buildings Regulations 2007 introduced a legal obligation on operators of Air Conditioning systems to undertake a regular energy inspection on the; design, installation and operation of such systems.  

The F Gas Regulations 2006 require systems with more than 3kg of refrigerant gas to be inspected and certified every 12 months, more frequently for larger systems. General planned maintenance servicing of systems, though recognised as best practice, is not a statutory requirement.