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CORGI Registered Gas Engineers In spite of CORGI being replaced by the Gas Safe Register in April 2009, a lot of people look for evidence of this registration when choosing the heating engineer. It's understandable, since CORGI registered heating engineers carry an official badge of identification that serves as proof of their qualifications. Qualifications Gas engineers are skilled professionals who are able to install the appliances, maintain them and repair them for residential and commercial use. They must be licensed and adhere to strict safety guide