- What "Exam Dates" Really Means for the AI Commission Exam
- How the National Board Path Works: Course First, Exam Second
- What Is Verified and What You Must Confirm
- Building a Scheduling Strategy Around the 12 Content Areas
- Exam Format You Should Plan For
- A Domain-Sequenced Preparation Timeline
- Deadline and Logistics Checklist
- Employer and Agency Timing Considerations
- Frequently Asked Questions
- The AI Commission exam is issued by The National Board of Boiler and Pressure Vessel Inspectors and has 85 questions.
- Candidates attend the AI Commission course and must pass the examination; confirm session dates directly with the National Board.
- The detailed content outline (NB-331-NC Revision 6) has 12 numbered headings with no published percentage weights.
- Required references include ASME Sections I, IV, V, VIII Division 1 and IX, B31.1, QAI-1 and RCI-1/NB-263.
What "Exam Dates" Really Means for the AI Commission Exam
If you searched for "AI exam dates 2026," you are probably looking for a calendar of fixed testing windows. For the National Board Authorized Inspector Commission (AI), that mental model needs adjusting. This credential is issued by The National Board of Boiler and Pressure Vessel Inspectors, and the path to the commission is tied to attendance at the AI Commission course, with a passing examination as part of that process. In other words, your "exam date" is closely linked to the course session you attend rather than to an open-ended, any-day-of-the-year scheduling pool.
This article explains how that structure affects your planning, what we can confirm about the exam from the issuer's published information, and how to sequence your preparation so that whenever your session lands, you arrive ready. We are deliberately careful here: where a specific date, fee, timer or passing mark is not verified, we say so rather than guess. For the authoritative, current schedule, always check the National Board's own examination information page.
How the National Board Path Works: Course First, Exam Second
The Authorized Inspector Commission is not a stand-alone, walk-in multiple-choice test. It sits inside a regulated inspection framework where Authorized Inspectors work for authorized inspection agencies and carry out duties defined by documents such as RCI-1/NB-263 and QAI-1. Because of that, the credential is designed around training and examination together.
The Two Pieces You Need to Coordinate
- The AI Commission course: The issuer's information states that candidates attend this course. Session availability, location and format are set by the National Board, so confirm them on its official pages.
- The examination: The exam contains 85 questions and must be passed. Because it is linked to the course, you should plan your preparation so your knowledge peaks at the time of your session.
Before you worry about dates at all, make sure you meet the prerequisites for the commission, which are covered in our guide to AI requirements, eligibility and how to qualify. Booking a course session without confirming eligibility is the most common way to waste both time and money.
What Is Verified and What You Must Confirm
Honest planning starts with separating what is documented from what you must check yourself. The table below summarizes the position.
| Item | Status | What to do |
|---|---|---|
| Issuing body | Confirmed: The National Board of Boiler and Pressure Vessel Inspectors | Use only National Board channels for registration |
| Number of questions | Confirmed: 85 | Practice at that length to build stamina |
| Course attendance | Confirmed: AI Commission course with a passing examination | Verify upcoming session dates with the issuer |
| Content outline | Confirmed: NB-331-NC Revision 6, 12 numbered headings | Download the outline and map your study to it |
| Domain percentage weights | Not published | Do not trust any site quoting weights; study all 12 areas |
| Exact exam timer | Unverified here | Confirm directly before your session |
| Current fee | Unverified here | Confirm with the issuer; see our AI certification cost breakdown for budgeting context |
| Numerical pass mark | Unverified here | Confirm with the issuer; read our overview of the AI passing score |
Building a Scheduling Strategy Around the 12 Content Areas
Since the exact session date is controlled by the course, your most valuable lever is how you use the lead time. The detailed outline (NB-331-NC Revision 6) organizes the exam into 12 numbered headings. A short introductory summary groups the content into 11 objectives, but that summary does not replace the detailed hierarchy, so build your plan on the 12 headings. For a deeper walk through each area, see our complete guide to all 12 AI exam content areas.
Because the domains differ enormously in density, a smart schedule does not give each one equal time. Group them by character:
Reference-Navigation Domains (1, 2, 3, 12)
These test whether you know who does what and where to find it.
- Domain 1, Responsibilities and Duties of the AI: RCI-1/ASME QAI-1 roles of authorized inspection agencies, supervisors and inspectors, plus duties found throughout the required references.
- Domain 2, Boiler and Pressure Vessel Types and Terminology: identifying vessel and boiler types and their parts.
- Domain 3, Code Structure and Content: navigating the ASME BPVC structure and related requirements.
- Domain 12, Record Retention: retention rules under ASME Sections I, IV and VIII.
Technical-Calculation Domains (5, 6)
These carry the heaviest conceptual load and deserve the largest block of study time.
- Domain 5, Design: power and heating boilers, external piping and vessels; shells and drums, piping, headers and nozzles, formed and flat heads, braced and stayed surfaces, weld sizes, nozzle reinforcement, preformed or prefabricated pressure parts, flanges, joint efficiencies and ligament efficiency.
- Domain 6, Materials: construction-section rules, product-form tolerances, markings and methods, pressure and nonpressure parts, non-ASME standards, defective-material repair and certifications.
Shop-Process Domains (4, 7, 8, 9, 10, 11)
These mirror what an inspector actually verifies in a fabrication shop.
- Domain 4, Quality Control System: Section I Appendix A-301, Section IV Appendix F, and Section VIII Division 1 Appendix 10.
- Domain 7, Fabrication: cutting and edge preparation, cold-forming limits, out-of-roundness limits for cylindrical, conical and spherical shells, formed-head tolerances, welding responsibilities, procedure and welder qualifications, alignment tolerances, fillet welds, defect repair, peening and surface weld-metal buildup.
- Domain 8, Nondestructive Examination: when NDE is required, permitted methods, advantages and limitations, procedure and personnel qualification, and reports.
- Domain 9, Testing and Heat Treatment: impact testing, heat treatment and pressure tests, including exemptions and alternatives.
- Domain 10, Calibration of Measurement and Test Equipment (M&TE): frequencies, methods, tolerances, master standards, identification and records.
- Domain 11, Data Reports and Stamping: reports and stamping for the construction type.
Exam Format You Should Plan For
The one format fact we can state with confidence is the question count: 85 questions. Because the content is drawn from a defined set of codes, expect questions that ask you to apply specific code rules, recognize responsibilities under QAI-1 and RCI-1/NB-263, and distinguish between requirements that vary by construction type (power boilers under Section I, heating boilers under Section IV, pressure vessels under Section VIII Division 1).
The required references are the backbone of preparation: ASME Sections I, IV, V, VIII Division 1 and IX; B31.1; QAI-1; and RCI-1/NB-263. Familiarity with where topics live inside these documents is as important as memorizing rules, since Domain 3 explicitly tests code structure. Whether any reference materials are permitted during the exam, and what the exact timer is, should be confirmed with the issuer; we do not assume either.
Key Takeaway
Practice in 85-question sets so the length itself does not surprise you. Pair each set with a review of which code section each missed question came from, because the exam rewards knowing the structure of the references, not only the rules inside them.
To gauge how demanding this is relative to your background, read our AI exam difficulty guide, and for what the data suggests about outcomes see AI pass rate: what the data shows.
A Domain-Sequenced Preparation Timeline
Rather than a generic weekly template, here is a sequence tied to the structure of this exam. Adjust the number of weeks to the gap between today and your confirmed course session. The logic is what matters: orient first, then tackle the heaviest technical content while you are fresh, then rehearse shop-process material, then consolidate.
Orientation and Navigation
- Download the NB-331-NC Revision 6 outline and tick off all 12 headings.
- Cover Domains 1, 2 and 3: roles under QAI-1 and RCI-1/NB-263, vessel and boiler terminology, and how the ASME BPVC is organized.
- Tab or bookmark where each required reference places its major topics.
Design and Materials
- Work Domain 5 in the order the outline lists it: shells and drums, piping and nozzles, heads, stayed surfaces, weld sizes, nozzle reinforcement, joint and ligament efficiencies.
- Move to Domain 6: product-form tolerances, markings, non-ASME standards and defective-material repair.
Fabrication, Welding and Examination
- Study Domain 7 limits and tolerances, including out-of-roundness and cold-forming.
- Pair it with Section IX concepts for welding procedure and welder qualification.
- Cover Domain 8 NDE methods, their limits, and personnel and procedure qualification.
Quality, Testing, Calibration and Records
- Review Domain 4 appendices, Domain 9 testing and exemptions, Domain 10 calibration, Domain 11 data reports and stamping, and Domain 12 retention.
- Finish with full 85-question practice sets and a targeted review of weak areas.
Our AI study guide for passing on the first attempt expands on how to turn this sequence into daily sessions, and the AI cheat sheet is useful for last-week review. When you want timed repetition, the AI practice test lets you rehearse in exam-length sets.
Deadline and Logistics Checklist
Since specific windows come from the National Board and the course structure, treat the following as a logistics checklist rather than a list of fixed dates. Complete each item early enough that a surprise (missing paperwork, a full session) does not push you back a cycle.
- Confirm eligibility. Review the prerequisites before anything else, using our AI requirements guide alongside the issuer's published criteria.
- Identify the next available course session. Check the National Board's examination information page for current offerings.
- Confirm the fee and payment method. The current fee is unverified here, so get the exact figure from the issuer and compare against the framework in our AI certification cost breakdown.
- Confirm exam rules. Ask about the timer, permitted materials and the numerical pass mark.
- Secure employer or agency support. Authorized inspection agencies are central to this credential, so line up approvals and time off early.
- Schedule your final review week. Block the days before your session for full-length practice only.
Employer and Agency Timing Considerations
The Authorized Inspector Commission is closely tied to authorized inspection agencies, which are the organizations that employ and supervise inspectors. That means your employer or prospective employer often plays a role in when you attend. If you are already working toward an inspector role, coordinate with your agency about session timing, travel and training time. If you are still weighing whether to pursue the credential, our pieces on whether the AI certification is worth it and the AI salary guide can help you decide before you commit to a session.
For readers new to the terminology, the basics are covered in what AI certification is and the overview of AI jobs.
Key Takeaway
Treat your session date as a project deadline with a hard stop. Work backward: registration confirmed, eligibility verified, domains covered in sequence, then full 85-question rehearsals in the final stretch.
Frequently Asked Questions
The issuer's information ties the examination to attendance at the AI Commission course, so your date depends on the course session you attend. We do not publish a calendar here; confirm current sessions with The National Board of Boiler and Pressure Vessel Inspectors.
The issuer's examination information confirms 85 questions. The exact timer, current fee and numerical pass mark are not verified in our sources, so check them directly with the National Board before your session.
No. The NB-331-NC Revision 6 detailed outline lists 12 numbered headings but does not publish percentage weights. Study every area, with extra time on the technically dense ones such as Design, Materials and Fabrication.
The required references are ASME Sections I, IV, V, VIII Division 1 and IX; B31.1; QAI-1; and RCI-1/NB-263. Knowing how each is organized helps with Domain 3 (Code Structure and Content) and with finding answers efficiently.
Work backward from the date: cover the navigation domains first, then Design and Materials, then Fabrication, NDE and the remaining shop-process areas, finishing with 85-question practice sets. Our AI study guide and the practice test support each stage.