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hey thanks for watching this video this is type two of your epa 608 exam prep if you havent watched the core videos part one and two definitely suggest doing that other than core though type two is probably the most commonly important i guess certification from epa for the handling recovery charging and purchasing of restricted refrigerants and the categories have changed a little bit over time about what is restricted and what isnt some of this stuff is in flux a little bit because of some recent rulings by the courts but most of it stays in place basically any refrigerants that youre using that are either a cfc hcfc or hfc including also now modern hfos are considered to be regulated and that means that you have to have a license to purchase them and to charge them and to recover them and you need to make sure not to vent them now again do not watch this video as complete prep for your epa exam because everythings changing all the time and you want to get your preparatory materi