The API-571 exam is a API certification exam validating the API Corrosion and Materials Professional syllabus shown above. It belongs to these credential paths: API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector. Candidates in 2026 start with ActualTestsIT's 151 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.

The official API Corrosion and Materials Professional outline defines 6 domains. The leading three are Environmentally Assisted Cracking (25%), Terms, Definitions, and Acronyms (5%), and Uniform or Localized Loss of Thickness (25%). The full list is in the topics section above, and ActualTestsIT's 151 practice questions cover each one.

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) Since requirements change over time, confirm the latest on the official API exam page before scheduling.

Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 151 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.

The API Corrosion and Materials Professional exam requires 70% / Scaled score determined by API to pass, and registration costs $440 USD. A failed attempt means paying the same fee again — a readiness check with the ActualTestsIT engines before booking is the cheaper option.

API recommends these training resources for the API Corrosion and Materials Professional exam:

• API RP 571 Damage Mechanisms Standard

Follow the training with steady self-testing — the 151 practice questions from ActualTestsIT help you apply theory and fill any gaps the training leaves.

The API Corrosion and Materials Professional exam contains 110 (100 scored, 10 unscored pretest) to complete within 195 minutes. Timed simulation in the ActualTestsIT Desktop Test Engine teaches that rhythm before exam day does.

ActualTestsIT issues a full refund if you take the API Corrosion and Materials Professional exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.

Computer-based testing (CBT) at Prometric test centers; online proctored option available Register for the API Corrosion and Materials Professional exam through these official channels:

• API ICP Portal
• Prometric Scheduling

After booking, ActualTestsIT delivers your practice questions within 1 minute — preparation starts the same day.