AREA Guide on the application of the new F-Gas Regulation to refrigeration, air conditioning and heat pump contractors is a living document that is regularly updated and completed following experience and after the adoption of relevant implementing legislation.
AREA has just published a third edition (V3). The update includes notably clarifications provided by a European Commission's information note for technicians and users, a table on "the next leak check", information from some implementing regulations (notably on training & certification) and a new annex with useful links.
Check the new AREA F-Gas guide in the publications section.