API570 Exam Schedule and Testing Locations 2026

2026 Exam Windows and Registration Deadlines

The API 570 Piping Inspector certification exam is administered by the American Petroleum Institute's Individual Certification Programs (ICP) division three times per year. Each administration is tied to a defined testing window rather than a single fixed date, which gives candidates flexibility in scheduling their Prometric appointment - but that flexibility comes with firm registration cutoffs you cannot miss.

For the 2026 exam cycle, API publishes its official window dates and corresponding registration deadlines through the ICP portal on the API website. The three windows typically fall in the first, second, and fourth quarters of the calendar year, though exact open and close dates shift slightly year to year. Candidates should check the API ICP page directly for confirmed 2026 window dates as soon as they become available, because late registration either carries additional fees or simply closes your access to that window entirely.

Once API approves your application and issues an eligibility notice, you schedule your specific exam date and location directly through Prometric's scheduling portal. Your eligibility period covers only the window you applied for, so you cannot roll unused eligibility into the next testing period without reapplying.

Testing at Prometric: What to Expect

API 570 is a Prometric-delivered exam, administered exclusively in person at Prometric test centers. There is no remote or online proctoring option for this certification. Prometric operates hundreds of test centers across the United States and in select international locations, which is particularly relevant for candidates working internationally in petroleum refining or chemical process plant environments.

When you log into Prometric's scheduling system with your eligibility ID, you will search by ZIP code or city to find available seats. Availability at any given center varies significantly. High-density refining regions - Gulf Coast, Midwest, and West Texas corridors - tend to have multiple nearby centers, but seats in popular windows fill faster there too. Candidates in less populated areas may need to travel to a metro center or schedule earlier to secure a preferred date.

On exam day, Prometric's standard security protocol applies: government-issued photo ID, biometric check-in, no personal items at the workstation, and secure locker storage for your belongings. The open-book portion of the API 570 exam uses PDF reference documents delivered on the testing computer - you do not bring physical books into the exam room. Understanding how to navigate those PDFs efficiently is a real test-day skill, not a minor footnote.

For a deep dive into exactly which documents appear in the open-book environment and how to use them under timed conditions, see our dedicated guide on API570 Reference Materials: What You Can Use Open Book.

Fees, Eligibility, and Registration Mechanics

The API 570 exam fee structure is straightforward but carries a meaningful price difference based on membership status. API members pay $875; non-members pay $1,125. That $250 difference is worth comparing against the current cost of API individual membership, especially if you plan to sit for multiple API ICP certifications or need access to API standards publications for your daily work.

Beyond the exam fee itself, eligibility for API 570 follows the same framework as other API ICP credentials like API 510 and API 653: a combination of education and work experience at an authorized inspection agency. The specific education-to-experience ratios are defined in the API ICP application requirements document. Candidates with an engineering degree need less total experience than those with a high school diploma. Your experience must include verifiable in-service piping inspection work in petroleum refining, chemical process, or related industries - general mechanical experience does not substitute for inspection-specific time.

Recertification carries its own separate fee schedule: $745 for members and $855 for non-members, applied at each 3-year renewal cycle. The certification is ANSI-accredited, which matters to employers who require third-party validated credentials for their authorized inspection program.

Applications are submitted through the API ICP online portal. Once submitted, API reviews eligibility - this review period can take several weeks, so factor that into your timeline when targeting a specific window. Payment is due at application. Withdrawal and refund policies are defined in the API ICP candidate handbook; review them before applying, particularly if your work schedule could conflict with the window you are targeting.

Exam Day Structure: 7.5 Hours Broken Down

The total exam day block for API 570 is 7.5 hours. That number surprises many first-time API ICP candidates who underestimate the mental endurance required. Here is precisely how those hours are allocated:

• Tutorial and administrative setup: A short orientation period at the start, not counted in exam time.
• Section 1 - Closed-book: 2 hours and 45 minutes. No references. Memory and applied knowledge only.
• Lunch break: 45 minutes. Mandatory break between sections.
• Section 2 - Open-book: 3 hours and 45 minutes. PDF references available on the testing computer.

The 170 questions include 140 scored questions and 30 unscored pretest items. API uses the pretest questions to evaluate them for future scored use. Because there is no way to identify which questions are pretest, every question must be treated as scored. The final result is reported as a scaled score with equating applied, meaning the passing threshold is adjusted to account for variations in difficulty between exam forms. There is no published raw passing score; candidates receive a pass/fail determination with a scaled score report.

The approximately 62% historical pass rate (as of 2022 data) reflects a genuinely challenging credential. Candidates who treat this as a light review of a standard they already know from field work routinely underperform. The exam tests both memory recall and code interpretation at a level that requires deliberate preparation.

The Two Domains Every Candidate Must Master

The API 570 Body of Knowledge organizes content into two domains that directly mirror the two exam sections:

The domain split (110 closed-book, 60 open-book) means that raw memorization capacity represents the larger share of your score. Candidates who invest heavily in open-book navigation practice while neglecting Domain 1 fundamentals will find themselves outpaced on the scored question count.

You can build and test your Domain 1 recall with targeted practice at our API 570 practice test platform, which covers the full content scope of the current Body of Knowledge.

Content Overlap and What Makes API 570 Distinct

Approximately one-third of API 570 content overlaps with API 510 (pressure vessel inspection) and API 653 (aboveground storage tank inspection). This overlap is intentional - the API ICP framework is designed around a shared inspection knowledge base. Candidates who hold API 510 will recognize fitness-for-service concepts, damage mechanism frameworks, and inspection documentation requirements as familiar territory.

What makes API 570 distinct is its exclusive focus on in-service piping systems in petroleum refining and chemical process industries. The exam covers topics specific to piping that do not appear in API 510 or API 653: piping circuit definition, condition monitoring location (CML) selection rationale, injection point and deadleg inspection requirements, small-bore piping strategies, and the unique corrosion environments found in high-temperature hydrocarbon service.

Employers who value API 570 certification include major oil refiners, petrochemical plants, gas processing facilities, and the inspection and engineering firms that serve those industries. Authorized inspection agencies - a term defined within the API ICP eligibility framework - are the primary employers whose staff pursue this credential. The certification signals that an inspector can independently execute the in-service inspection program for piping systems under API 570 jurisdiction.

The current Body of Knowledge and Publications Effectivity Sheet for 2025 and 2026 exams are published separately by API. Always confirm you are studying against the effectivity sheet that applies to your specific exam window - referenced standard editions change, and exam questions are written to specific editions.

Structuring Your Preparation Around the Two Domains

Given the domain structure of API 570, preparation logically divides into two phases that mirror the exam itself. The following timeline is built around an 8-week preparation block targeting a mid-window exam date:

Certification Validity and Recertification Requirements

API 570 certification is valid for three years from the date of issue. The ANSI accreditation of the program means that validity and recertification requirements are standardized and cannot be waived by employers or inspectors unilaterally.

Recertification requires two substantive conditions: the certified inspector must have spent at least 20% of their professional time during the certification period in active piping inspection work, and they must accumulate a minimum of 24 Continuing Professional Development (CPD) hours relevant to the certification scope. In addition, every six years - spanning two recertification cycles - the inspector must pass an online quiz administered through the API ICP system.

Recertification fees are $745 for API members and $855 for non-members per three-year cycle. Inspectors who allow their certification to lapse must reapply and re-examine rather than simply paying a reinstatement fee, which makes timely recertification strongly preferable to letting the credential expire.

For more detail on exam structure, scoring, and what the API570 Exam Schedule and Testing Locations 2026 means for your specific application timeline, bookmark the API ICP candidate page and check it each time a new window is announced.

Frequently Asked Questions