The API Corrosion and Materials Professional exam (code: API-571) is the official API exam that leads to the Corrosion and Materials Professional certification. It sits at the Professional level of the API certification track. It is also connected with related credentials such as API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector. Passing it proves to employers that your skills have been validated by API itself, which is why the API-571 credential keeps showing up in job postings.

The API Corrosion and Materials Professional exam gives you 195 minutes to work through 110 (100 scored, 10 unscored pretest). Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the NewPassLeader test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.

The passing score for the API Corrosion and Materials Professional exam is 70% / Scaled score determined by API, and the official registration fee is $440 USD. Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with NewPassLeader practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above 70% / Scaled score determined by API.

According to API, the following applies: Hold current API 510, 570 or 653 certification; or meet education + experience requirements: BS/BS in engineering/tech + 1 year, 2-year degree + 2 years, high school + 3 years industry experience (past 10 years). Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://www.api.org/products-and-services/individual-certification-programs/certifications/api571 before you register.

You can book your API Corrosion and Materials Professional exam through the official channels below:

• API ICP Portal
• Prometric Scheduling

API lists the following training options for API Corrosion and Materials Professional candidates:

• API RP 571 Damage Mechanisms Standard

Official courses build a solid foundation, and pairing them with the 151 practice questions from NewPassLeader shows you how ready you really are before you spend money on the exam itself.

Yes. NewPassLeader offers a free API-571 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your API Corrosion and Materials Professional material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.

If you take the corresponding API-571 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.

The official API Corrosion and Materials Professional syllabus is organized into 6 main domains. The first three are Uniform or Localized Loss of Thickness (25%), Terms, Definitions, and Acronyms (5%), and High-Temperature Corrosion and Degradation (15%). For the full domain-by-domain breakdown, see the complete Exam Topics outline above.