The API-510 exam leads to the Authorized Pressure Vessel Inspector certification from American Petroleum Institute (API). It is positioned at the Professional level. The exam validates the knowledge and skills expected of candidates preparing for API Pressure Vessel Inspector.

Related certifications include:

• API 570 Piping Inspector
• API 653 Storage Tank Inspector
• API 571 Damage Mechanisms
• API 576 Pressure Relieving Devices

The API-510 exam includes 170 (140 scored + 30 unscored pretest; 110 closed-book + 60 open-book) questions and allows 450 (total exam day: 7.5 hours; 165 min closed-book + 225 min open-book + 45 min break). Before test day, divide the available time by the number of questions in a timed practice set to establish a steady per-question pace. If a difficult item starts consuming too much time, mark it for review and move forward instead of losing momentum. A full timed practice session can help you decide when to move on, when to return, and how much buffer to reserve for a final check.

The passing score for API-510 is 550 (scaled score, range 200–750), and the official exam fee is $875 (API member) / $1,125 (non-member) USD. Because a retake requires paying the exam fee again, use timed practice results as a readiness check before scheduling your next attempt. If your performance remains inconsistent, continue reviewing weak domains and repeat a timed session before booking the exam.

Education + experience: BS/Eng Tech: 1 year; 2-yr degree: 2 years; High school: 3 years; No degree: 5 years. All require minimum 1 year performing/supervising pressure vessel inspection work within last 10 years

Eligibility rules can change, so confirm the current requirements on the official exam page before registering.

You can register through the official channels listed below:

• API Certification Portal
• Prometric Scheduling

The available exam delivery method is In-person computer-based test at Prometric authorized centers worldwide; no remote testing available.

The official training options include:

• API Official Training Resources
• API 510 Body of Knowledge

After reviewing the recommended training, reinforce what you learned with Actual4dump's 175 practice questions for API-510.

Yes. Actual4dump provides a free PDF demo so you can review the format, question style, and answer quality before placing an order. Your purchase includes 365 days of free updates, and expired products can receive continued update service at a 50% discount.

If you purchase the corresponding API-510 preparation material and do not pass that exam within 60 days of purchase, you may apply for a full refund under the 100% Money Back Guarantee. The request requires a scanned exam enrollment slip and the official Score Report PDF, submitted within two days after the exam. Eligible requests are processed within seven days.

Claims are not eligible if the exam was taken within three days of purchase, the product was downloaded without an exam attempt, the order was free or expired, or the candidate name does not match the payer name. If you prefer an exchange instead of a refund, you can receive two free products of equal value while keeping the update service for your original purchase.

Delivery is immediate after checkout. The download is available right away, and the product is also sent to your email within one minute. Contact customer support if it has not arrived within two hours. You may install the product on an unlimited number of computers.

The current API-510 outline is organized into 5 top-level domains. The first listed areas include:

• Design, Materials, and Fabrication Rules (22%)
• Inspection Scope, Planning, and Data Evaluation (28%)
• Damage Mechanisms and Corrosion Assessment (22%)

Review the Exam Topics section above for the complete outline and any nested subtopics.