INDUSTRIALLY ACCLAIMED · NCCA-ALIGNED CURRICULUM · PUBLIC TRUSTED
TRAINED IS A CLAIM.
CERTIFIED IS PROOF.
Completing training can make you a more capable, informed professional. But only certification demonstrates you have the knowledge, skills, and safe practices to meet the industry standard. Certification does. AFVi’s exam, developed independently of its training, against a job-task-based standard — which means the credential proves competence, not attendance.
The Credentials That Separate Skilled
WHAT “TRAINED” CAN’T TELL YOU — AND “CERTIFIED” CAN.
In high-pressure CNG and hydrogen systems, mistakes aren’t just inconvenient — they can be dangerous. Certification verifies that you can apply solutions in real situations, follow the latest codes and standards, and consistently meet industry expectations. It shows more than attendance; it shows your ability to inspect, maintain, and evaluate infrastructure the right way.
COMPLETED TRAINING
AFVI CERTIFIED
Confirms fundamental knowledge
Yes — validates you completed instructional requirements.
Yes — proves technical competence on job-task standards.
Measured against an external standard
No — training programs set their own content.
Yes — exam is independently developed against an industry standard.
Publicly verifiable credential
No — completion isn’t a credential.
Yes — certification number, digital certificate, and registry.
Expires and renews
No — there’s no renewal requirement.
Yes — 5-year validity with renewal requirements.
Shows real-world competence
Not always — attendance shows exposure to information.
Yes — demonstrates you can apply knowledge to real-world inspections and service tasks.
Beyond Training
WHY THE CREDENTIAL MEANS SOMETHING.
AFVi certification only carries weight because of how it’s built. The process is independent, objective, and aligned to the real work done in the field.
NCCA-ALIGNED PROGRAM
Built to meet nationally recognized standards for personnel certification programs.
INDEPENDENT ADVISORY BOARD
Industry experts help maintain relevance and quality.
BUILT FROM A JOB STUDY
Exam content comes directly from real-world tasks and responsibilities.
SEPARATE FROM TRAINING
The exam is independent of training, which preserves credibility.
From Knowledge to Practice
TWELVE DOMAINS. THE WHOLE INSPECTION.
The exam is based on the inspector role — from background knowledge to rough, final, and special inspection types — across 12 skill domains.
1
Regulations, codes and standards, system components, and decoding
2
Filling operations, safety protocols, and emergency response
3
Site layout, clearances and equipment placement
4
Fuel system components and their pressure and control logic
5
Electrical and control equipment
6
Installation requirements, system safety, and startup/shutdown procedures
7
Inspection tools, instruments and techniques
8
Cylinder, vent and pressure relief devices
9
System health, service, and online updates to guidelines
10
Quality requirements, repair and guidance on out-of-service criteria
11
Final and special inspection types and processes
12
Reporting requirements and digital record-keeping
CNG & Hydrogen
TWO FUELS. ONE STANDARD OF PROOF.
CNG FUEL SYSTEM INSPECTOR CERTIFICATION
The focused credential for inspectors of natural gas vehicle systems, components, and codes that assure safe service.
FORMAT: 50 Questions, Proctored
FOCUS: Light- or Heavy-Duty Systems
PASSES: Proof of Inspection Training
RESULTS: Same Day – Fail or Retake
CREDENTIAL: Digital – 5-Year Valid
HYDROGEN FUEL SYSTEM INSPECTOR CERTIFICATION
The industry’s standard for hydrogen system inspectors, designed to meet the unique requirements of hydrogen infrastructure.
FORMAT: 50 Questions, Proctored
FOCUS: Light- or Heavy-Duty Systems
PASSES: Proof of Inspection Training
RESULTS: Same Day – Fail or Retake
CREDENTIAL: Digital – 5-Year Valid
Public Registry
VERIFY AN INSPECTOR
Look up certification status, renewal dates, and credentials. It’s an easy way to confirm an inspector’s qualifications.
CNG Training Credential
CUMMINS + AFVI CNG MASTER TECH
AFVi is the official certification provider for the Cummins Master Tech program. This pathway demonstrates advanced CNG expertise and real-world competence.
Valued Partners
Put 38 Years to Work
The standard is set. Bring your fleet up to it.
Talk to the team about certification pathways, on-site training, or a facility readiness assessment for your operation.
ABOUT AFVi
- About
- Customer Success Stories
CERTIFICATION
- Course Exams
- Certified Inspector Lookup
TRAINING
- Course Catalog
- Live In-Person Training
- On-Demand E-Learning
- Team Training
- Live Online Training
- Schedule
RESOURCES
- Blog
- Technical Papers
- Tech Talk
- CNG Fuel System Inspector Requirements
- CNG Fuel System Inspector
- Battery
CONTACT US
ALTERNATIVE FUEL VEHICLE INSTITUTE (AFVi)
7251 West Lake Mead Blvd Ste #590
Las Vegas, NV 89128
1-(800) 510-6484
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