Registration for the API Corrosion and Materials Professional goes through the official channels listed here:

• API ICP Portal
• Prometric Scheduling

One detail worth knowing before you book: the API-571 exam is delivered Computer-based testing (CBT) at Prometric test centers; online proctored option available.

Yes — the free trial exists so customers can fully understand the system before buying. Download the sample API-571 practice questions at no cost, explore the interface, and check the verified answers yourself. Once you purchase, 365 days of free updates are included, and if the product expires, the update service renews at a 50% discount from your member zone.

The API Corrosion and Materials Professional blueprint is organized into 6 domains, led by High-Temperature Corrosion and Degradation (15%), Uniform or Localized Loss of Thickness (25%), and Terms, Definitions, and Acronyms (5%). The complete weighted syllabus appears above on this page — it is the checklist your preparation should be measured against.

You will face 110 (100 scored, 10 unscored pretest) questions within 195 minutes on the API-571 exam. The real exam pressure comes from that ratio — knowledge alone does not finish exams on time. Rehearse with the Lead2PassExam test engine's timed mode, repeat the same question sets until the answers consolidate, and pacing stops being a risk factor.

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)

Eligibility rules do get revised, so before booking, verify the current requirements on the official API exam page.

Delivery takes effect immediately: download right after payment, with an email copy arriving within one minute. If 2 hours pass with no email, check spam and contact customer service — professional staff can remotely guide installation and use if needed. Downloads and simultaneous use are not limited, so every device you own can carry the material.

If you sit the API-571 exam within 60 days of purchase and do not pass, the Lead2PassExam money back guarantee covers you: file within 2 days of the exam with a scanned enrollment slip and the official score report (PDF), and the claim is processed within 7 days. The candidate name must match the payer name; the policy excludes exams taken within 3 days of purchase, purchases never used in an actual exam attempt, free materials, and expired orders. If you prefer to keep preparing, exchange the product for two free exam packages of equal value and retain the update service on your original purchase.

API lists these training resources for the API Corrosion and Materials Professional:

• API RP 571 Damage Mechanisms Standard

Courses build the framework; repeated practice consolidates it. Pair whichever resource you choose with 151 practice questions from Lead2PassExam and important knowledge points stay learned, not just seen.

The API-571 exam — full title Corrosion and Materials Professional — is API's own certification test, and passing it awards the Corrosion and Materials Professional certification at the Professional level. The certificate is valuable precisely because it is demanding: it proves to employers that your skills survived a vendor-built examination. It also serves as a stepping stone toward API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector.

The passing score is 70% / Scaled score determined by API, and the official registration fee is $440 USD. Note that the fee pays for a single attempt — a retake is charged at full price again, which is the expensive way to discover weak spots. The cheaper discovery method is self-testing: drill 151 practice questions at Lead2PassExam in timed mode until your scores clear the passing mark with room to spare, then register.