1.1 The ASSE 6010 Credential: Eligibility, Exam Format & Recertification

What the Credential Is (and Is Not)

ASSE 6010 is one of the professional qualifications standards in ASSE/IAPMO/ANSI Series 6000, the consensus standard for medical gas systems personnel. ASSE International publishes the standard; the 2024 edition is written to parallel NFPA 99-2024, Health Care Facilities Code. The standard itself does not hand anyone a card. Third-party certification bodies test candidates against it. The National Inspection, Testing and Certification Corporation (NITC) runs the most widely referenced program, and some states name it directly. Minnesota, for example, requires a current NITC medical gas installer card (plus a plumbing license) before it issues its own medical gas certification.

NFPA 99 explains why the credential matters. Installers of medical gas and vacuum distribution piping must be certified to ASSE 6010. The same applies to the appurtenant piping that supports pump and compressor sources and to the piping that supports source gas manifolds. Permanently installed bulk source systems are excluded; they have their own cryogenic standards. The NFPA 99-2024 text adds two rules that show up on exams:

• No supervising noncertified workers. A certified installer may not use the certification to oversee installation work by noncertified personnel. Every person who installs piping or components, including every brazer, needs an individual qualification.
• In-house staff follow the same rules. Health care organization personnel may install piping only if they meet all the installer requirements.

Eligibility

NITC's candidate bulletin applies ASSE 6010 Section 10-3.2 as follows:

1. Experience: a minimum of four years of documented practical experience installing plumbing or mechanical systems. Employer letters, work histories, licenses, and dispatch or trust-fund reports that name the employer are typical evidence. A union local is not the employer.
2. Training: a minimum 32-hour course taught by a Medical Gas Systems Instructor certified to ASSE 6050.
3. Examinations: a passing grade on a multiple-choice exam covering ASSE 6010 and the applicable sections of NFPA 99, and a passing grade on a practical brazing exam.

The NITC Examination

The content outline weights the written exam as follows:

For the practical, the candidate brazes two joints on a horizontal coupling and two up-flow joints on a vertical coupling. The test can be taken at an approved testing facility. It can also be taken at an employer's facility if a qualified contractor or manufacturer representative supervises it. NITC does not treat anyone as certified until both parts are passed and brazing continuity is registered.

Candidates learn pass or fail immediately and receive a score report broken down by objective. A candidate who fails may retest as soon as another exam can be scheduled, though a new application and fee may be required. NITC may also require refresher training before a third attempt. NITC's March 2026 price list shows $130 for a proctored original exam without braze, $150 with the braze in the same session, and $75 for a separate BTS15 braze test. Testing at a Prometric center adds a $60 processing fee for a 2-hour exam. Course tuition is set by the training school.

Exam-Day Logistics at NITC

• Where: at the training site with an NITC-approved proctor, often as a group arranged by the instructor, or at a Prometric test center after NITC approves the application.
• Group requests: submitted at least three weeks before the exam date, with the instructor's name and certification number. Groups of fewer than ten candidates pay a processing fee.
• Admission: sign the roster and show acceptable photo identification. Electronic devices are prohibited, and closed-book candidates may not bring references or notes.
• Challenges: a written challenge to an exam question must reach NITC within 30 days after the candidate receives the score.

Keeping the Credential

• Term: three years from issuance.
• Brazing continuity: an authorized employer or contractor representative (never the brazer) documents every six months that the brazer used the qualified process. If continuity lapses, the brazer requalifies by brazing one vertical up-flow joint under the BTS15 package.
• Recertification: a minimum 4-hour course on the current edition of NFPA 99, taught by an ASSE 6050 instructor. It is followed by a proctored, open-book, 40-question exam with 80% (32 correct) needed to pass and 2 hours allowed.
• Grace period: NITC allows one year after expiration to recertify. The person is not certified during that year, and missing it means retaking the original exam.