As of January 2011 an Air Conditioning Inspection Report (ACIR) became mandatory (TM44) for all commercial buildings with air conditioning systems having a combined capacity over 12 kW.

TM44 provides guidance on carrying out the required aci inspections within reasonable constraints of time , cost and skills and gives those undertaking air conditioning assessments specific guidance on giving advice to building owners and managers. Those responsible for buildings with systems over 250kw need an assessment now, those with smaller systems over 12kw need to be undertaking reports at this time to provide long term planning for the January 2011 deadline.

TM44 defines an air conditioning system so that those who are not sure whether they need an air conditioning assessment are clear.

It states that the EPB regulations define an "air conditioning system " as; " a combination of all the components required to provide a form of air treatment in which the temperature is controlled or can be lowered , and includes systems which combine such air treatment with the control of ventilation, humidity and air cleanliness"

As a member of REFCOM Woodthorn Air Conditioning ensures customers compliance to their legal responsibilities for being owners or operators of air conditioning equipment containing fluorinated refrigerant gases.