Welding and Machining Trade Schools

Certification conveys a job applicant's skill

Even if the trade you choose doesn't require you to be certified to find employment, certification is still a great way to validate your abilities. Some schools offer programs that certify graduates while some organizations and associations offer examinations for workers who have already graduated from a training program. Either way it's a good idea to check with employers in the welding and machining industry to find out if certification is necessary and if specific certification is recommended.


Welder - Even after welders have completed training programs they must prove to employers they have the necessary skills for the job. Tests can determine a welder's skill. These tests may relate to a specific welding process and involve different types of metals and thicknesses. Organizations such as the American Welding Society (AWS) or the American Society of Mechanical Engineers (ASME) often administer these examinations according to certain codes. Canada has its own standards, but other countries may follow AWS or ASME. Welders are certified to the extent of their qualifications, meaning some will be certified to do a wider range of work or perform more difficult welds. They usually have to renew their certification every few years.

Machinist -The National Institute of Metalworking Skills (NIMS) provides national standards for metal workers. Machinists can earn certification by completing a program at a school that includes NIMS standards in their curriculum. To graduate, students must pass examinations to become certified in one of three skill levels.

Students in technical or trade schools that don't subscribe to NIMS standards can also take the tests to become certified but they will have to first take a course through a trade association or union, or through their employer. Machinists don't have to be certified but it may help them when looking for a job. NIMS certification must be renewed every five years.