Every time you cross a high bridge, fly on an airplane or go up in a high building you can thank a welding inspector for verifying that the welds that hold the structure together are sound. Welding inspectors are needed for a number of industries, such as oil and gas production and offshore rigs to working in factories and in building construction. It takes up to three years or more to become a qualified welding inspector. Inspectors start off as welders first, then take the required courses to become a Certified Welding Inspector. For more see the following article about how to become a welding inspector. How To Become A Welding Inspector