API 653 Certification | Qualification | Examination

(1.) API 653 examination consists of 150 multiple-choice questions with an open and closed book sections. The examination is administered by participating members of the National Board of Boiler and Pressure Vessel Inspectors and by the Professional Examination Service (PES). Total length of examination is 8 hours. Individual jurisdictions may charge a sitting fee to take the examination in their jurisdiction. Please contact the jurisdiction you select for an exact amount. There is no additional sitting fee at the locations where examination is administered by PES.

(2.) If you pass the examination, and all sections of your application are complete, you will be certified and receive a wallet card and a certificate approximately 3 months after the examination date.

(3.) API grants each applicant three consecutive attempts during the 18-month period to sit and pass the test, starting with the first exam administration the applicant registers for. If you fail the examination on your first attempt, you may retake it twice. If you fail to appear for the test, it will still count as an official attempt.

(4.) If you do not pass the examination on the first attempt, you need to submit a $50.00 rescheduling fee. If you do not pass it on the second attempt, you must also submit an updated Employment Reference form. If the candidate is unsuccessful on the third attempt, a new application must be submitted with a new application fee.

(5.) Examination results will be mailed to you approximately 8 weeks after you have taken the exam. DO NOT call API, PES, or your jurisdiction for examination results; these results WILL NOT be given over the telephone.

What to Bring to the Examination

A non-programmable calculator (a calculator with only simple functions);
The applicable API and ASME reference publications. Please note: highlighting, underlining, page tabs, and notes written in margins of the code books are acceptable. However, loose pages inserted in the code books are not acceptable.
Note: API and ASME publications are copyrighted material. Photocopies of publications are not permitted at the exam;

  • Your examination site confirmation letter;
  • A picture ID (i.e. driver’s license).