API-580 Study Guide 2026

Everything you need to pass the API-580 exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

API-580 exam key facts

The API 580 exam has 90 questions, of which 80 are scored and 10 are unscored pretest questions. Source
The API 580 exam has a set passing scaled score, but API does not publish the number on the certification page. Source
The API 580 initial certification fee is $440 for non-members and $380 for API members in 2026, rising to $450 and $390 in 2027. Source
API gives each API 580 candidate 12 consecutive months from the first scheduled exam date to pass, and a candidate who does not pass must submit a Reschedule application to retest. Source
API 580 certification is valid for a three-year term. Source

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📋 API-580 Exam Format at a Glance

Questions

195 min

Time Limit

70.00%

Passing Score

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📚 API-580 Topics to Study (21)

✍️ Sample API-580 Questions & Answers

1. In API 580, what does 'risk target' or 'risk tolerance' represent in the context of RBI?

✓ The maximum level of risk a facility is willing to accept, used to define acceptable and unacceptable risk zones on the matrix

Risk tolerance is facility-defined and represents the boundary between acceptable and unacceptable risk, forming the basis for prioritization decisions.

2. In API 580, when an equipment item moves to a higher risk category over time without additional inspection, this is most commonly due to which factor?

✓ Increasing damage factor as the component ages or corrosion accumulates without inspection credit

Without inspection credit to offset the damage factor, the calculated POF rises over time as damage accumulates, moving the equipment into a higher risk category.

3. Which statement best describes the 'damage factor' used in API 580 POF assessments?

✓ It adjusts the generic failure frequency based on the severity of active damage mechanisms

The damage factor modifies the generic failure frequency upward or downward based on the presence and severity of applicable damage mechanisms.

4. Which of the following best describes 'residual risk' in the context of API-580 RBI mitigation?

✓ Risk remaining after all planned mitigation measures have been implemented

Residual risk is the risk that remains after mitigation measures are applied; API-580 requires this residual risk to be evaluated against acceptance criteria.

5. How should atmospheric storage tanks be addressed in an RBI program?

✓ By evaluating both internal corrosion of the floor/shell and external corrosion of the bottom

Storage tanks require evaluation of internal corrosion (floor and lower shell from product side), external corrosion (tank bottom from soil side), and structural integrity of the roof and shell, per API 653 standards.

6. What is the difference between a Level 1 and Level 3 RBI assessment?

✓ Level 1 is qualitative/screening; Level 3 is fully quantitative with detailed analysis

Level 1 RBI uses qualitative or semi-quantitative screening methods for initial prioritization, while Level 3 uses fully quantitative probabilistic analysis with detailed consequence modeling and probability calculations.

🎯 Free API-580 Practice Tests

Risk Mitigation and Control Measures · 7 questions Risk Mitigation and Control Measures · 7 questions Risk Analysis n · 6 questions Regulatory Compliance · 6 questions Corrosion Mechanisms · 6 questions Inspection Planning · 6 questions Process Safety and Consequence Analysis · 6 questions API-580 Consequence of Failure Modeling · 6 questions API-580 Probability of Failure Analysis · 6 questions Risk Assessment Methodology · 6 questions

📖 API-580 Guides & Articles

Your API-580 Study Path

1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

🃏 API-580 Flashcards (128)🏆 API-580 Exam Simulation

What Practice Test Geeks adds beyond an AI chat for API-580

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

A timed, full-length API-580 mock exam — 90 questions in 195 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
A fixed API-580 question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
A printable API-580 cheat sheet you can print or save as a PDF.
API-580 flashcards built from the same question bank.
Free API-580 practice tests with the correct answer shown after each question.

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How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

api.org — Fees, late registration, registration deadline, retake fee, retake policy, test delivery, score release, eligibility, exam format, passing score · verified Oct 2026