https://jsfiddle.net/9masb7xc/
CORGI - 58% of Consumers Still See It As An Essential Factor When Choosing Their Gas Engineer When repairing or replacing your gas boiler you want to be certain that the technician you choose is licensed. Recent polling done prior to Gas Safety Week showed that even though CORGI not being the official register for gas engineers, 58% people still consider it to be an important factor when choosing their gas engineer. Qualifications The profession of gas engineer is an extremely lucrative career choice, with opportunities for advancement and specialization.