A medical gas piping system provides medical facilities with gases such as oxygen, carbon dioxide and nitrogen. These gases are used in surgeries, to maintain clean air all throughout the hospital and to provide power to surgical equipment. Only pipe fitters certified in medical gas piping are allowed to install and operate medical gas piping systems. You should be at the Journeyman-level with 4 years of experience in a pipe-fitting before gaining your certification.

Enroll in a 32-hour training course for installing medical gas systems and brazing. The Environmental & Medical Gas Services offers training classes nationwide.

Get a copy of the National Fire Protection Association 99 manual. It's the book of technical standards for health care facilities, and you must know the sections that pertain to medical piping structures. A solid grasp of this manual ensures you have the best chance of passing your test and getting your certification.

Download requirement and preparation guides for your medical gas installer and brazer certification exam from the National Inspection, Testing and Certification Corporation. Complete an exam request form.

Score at least 77 percent on your medical gas installer exam, and pass the practical brazing examination. You should have your test results two weeks after the date you complete test tasking.

Send a photograph, your current address and proof of your current medical gas installer and brazer certifications to the NITC office to receive your medical gas installer identification card.