API 571 is suitable for highly specialized inspectors, corrosion engineers, chemical engineers and other professionals across the entire petrochemical industry to obtain the API 571 Corrosion and Materials certification as a validation of their profound knowledge of corrosion processes.
The API 571 certification will add significant value to your professional credentials, demonstrating to your employers and clients that you have obtained a high level of proficiency and understanding in this important field.
The API 571 exam is very comprehensive, with 110 difficult questions covering many of the 67 Damage mechanisms.
Scoring Area |
Approximate No. Of Questions |
Critical Factors |
30 |
Description of Damage |
20 |
Insp. & Monitoring |
20 |
Prevention & Mitigation |
15 |
Affected Equipment |
10 |
Affected Material |
5 |
Appearance or Morphology |
7 |
Related Mechanism |
3 |
Total Questions |
110 |
If you do not study the above details in the areas outlined, you will likely not do very well on the exam. It is expected that you can pass the exam (70 out of 100 scored questions = 70% or minimum 400 on a scale of maximum 500) if you:
The exam tutorial shows how the icons work. You have 10 minutes to read through the tutorial before the exam starts.
API 510/570/653 Exams cover 20 damage mechanisms.
Pay special attention to them. There is concise version of these 20 damage mechanisms in Module 3.
If you hold a current API 510, 570 or 653 certifications, you automatically qualify to take the API 571 Corrosion and Materials certification exam.
If you do not hold a current API 510, 570 or 653 certifications, then qualification is based on a combination of your level of education and industry experience acquired within the last 10 years.
Prior to submitting an application, please use the table below to determine if you qualify to take the API 571 exam. The minimum experience required MUST be documented on your application.

API examinations are divided into two main groups: core exams (API 510, 570, 653) and others (API 571, 571, 580, 936, TES, 1169, SIFE, SIRE).
All API examinations held 3 times a year and each API certification has ‘’ 3 weeks exam window’’ that you should choose from at the time of registration.
The deadline to get API authorization email is approximately 2.5 months or 10 weeks prior to the selected test window.
To get the API approval in order to sit for a particular test, file the application form by registering with API ICP using below link:
Then; upload the supporting documents (your qualification & certification); provide two references & pay the fee. For schedule and fees, see the link below:
API shall verify your claimed experience by contacting (via business email) the two references you have provided.
It is recommended to brief your references, so they know which inspection fields and for how long you have claimed the experience for. This would avoid any discrepancy that may result from your claimed experience against their verification.
After registration and approval by API, you can select a location, date and time at a Prometric test center.
Prometric is subcontracted by API to hold the computer-based examinations.
There are more than 600 Prometric testing centers across 160 countries worldwide to choose from.
All Prometric testing centers operate on the first-come-first-served basis.
Therefore, API cannot promise that you will be able to obtain a seat at your preferred location.
It is highly recommended that you may schedule your exam immediately after receiving your ‘’Exam Authorization Notice’’ email from API.
If seats are not available, try a different date within the same window, or choose another location.
If you want to know more, please contact our WhatsApp line or use below link for Frequently Asked Questions (FAQ):
Although the deadline to get your application approved prior to your selected test window is around 2.5 months, you might not be able to find a suitable available date or worse, you might not be able to get a seat at your favorite test center within the allocated ‘’3-week window’’ if your approval (API authorization email) is received late.
So, it is recommended that you register and get API approval (API Exam Authorization Notice email) around 3-4 months prior to your scheduled exam; that is; do not choose the next immediate test window but choose the one that is at least 3-4 months away. This is especially important for core API exams that need a full day slot.
You can change the location and the date (within the allocated 2 weeks window) up to 30 days before the last day of test window free of charge and between 5-29 days for a fee of USD 70 $ subject to availability. Normally, it is possible to change the time and location for API 571.
If you fail the initial exam, you need to apply for rescheduling and pay $200 re-examinations.
After requesting for rescheduling and paying the fee, you shall receive the approval letter via email within a day or two.
You shall then book your seat with the Prometric as soon as possible.
One of our trainees received the API Exam Authorization Notice for API 570 seven months before the selected test window; but he attempted to book a place with Prometric only two months before the test window.
As a result, his closest Prometric center (London) was already full, so, he had to fly to Amsterdam Prometric test center to attend the exam.
API 571 certification is valid for a three-year term and exam cost $ 440.
After 3 years, you need to apply for recertification paying $ 320.
You may apply for recertification 90 days prior to the certification expiration date, and for a 90-day grace period after (subject to a late application fee of 200 $).
If an application is not submitted by the end of the 90-day grace period, the certification will expire. A new application and fees must be submitted, and you will need to pass a full examination in order to be recertified.
Make sure you reach the Prometric test center at least half an hour before the scheduled time.
Prior to letting you in to sit for the exam; they shall:
You cannot carry anything with you except a bottle of water.
No ornaments are allowed except a wedding ring.
Prometric Staff shall supply you with a couple of green color A4 size papers and a pencil for taking notes plus a simple calculator.
You are required to have a valid government issued photo identity card such as a passport or a driving license and keep it with yourself during the examination.
During API 653 exam, one of our candidates had an expired driving license and was refused entry although he returned half an hour later with a valid passport but by that time it was too late, Prometric said.
As a result, he had to pay the rescheduling fee (USD 350 $) and appear for the exam 6 months later.
It is recommended to check your photo ID to ensure it is valid and preferably carry two valid government issued photo ID as plan B.
It is simply not worth it to be refused for an ID issue after all the time, effort and money you have put in.
Prior to the examination, you shall be given the key to a locker to keep your belongings.
You are not allowed to use the locker until you have completed the exam.
Currently API in collaboration with “Prometric” holds remote proctoring.
for more information, click on link below:
After your application is approved, you will receive an Exam Authorization email from API with an Eligibility ID and instructions on how to schedule your exam through:
Click to go to: