United Nations Environment Programme (UNEP) OzonAction Branch, as well as other United Nations (UN) agencies operating under the Montreal Protocol on Substances that Deplete the Ozone Layer, offered over the last two decades exhaustive training programmes for the servicing technicians on the refrigeration good practices including emissions reduction and sound management of refrigerants. These training programmes always offered also opportunity to field engineers to get involved but majority of the training recipients were field technicians. Therefore, the level of training programmes is always simplified to the minimum scientific level with more focus on hands-on practices and service techniques.