Candidates who attain, or already hold, the core commercial qualification, CCCN1 (or equivalent), will normally add a range of optional qualifications to the core CCCN1 certification. The additional qualifications, typically COCN1, CCLNG1 and others, will allow you to work upon commercial appliances required. Typically Gas Engineers will add Commercial Heating (Wet), Commercial Laundry, Commercial warm air heating, etc. Commercial appliances and equipment can be wide ranging, however, here at GATc we provide you with the training & assessment required to work upon which ever appliances you choose. The professional, helpful & comprehensive training provided to you at GATc Ltd will support you in passing each assessment and achieving the qualifications you need.