Part of the expanding PassProfessor catalog: this guide covers API’s API 570 Piping Inspector examination as API publishes it — 170 questions (140 scored, 30 unidentified pretest) in a 7.5-hour Prometric day, 110 closed-book and 60 open-book, passed at a scaled score of 400 on the 200 to 500 scale, and built to the effectivity pins for February 2027 and June 2027. PassProfessor’s companion practice program is in the works.
The program is in the works, built on the published Body of Knowledge for this examination. Join the notify list and we will email you when enrollment opens — then use this guide to plan your preparation area by area.
The API 570 credential is the piping inspector’s authorization: it certifies that an inspector can inspect, rate, repair, and rerate in-service piping systems under the API 570 code and the reference publications API pins to the examination. This guide does the planning work in the open: verified facts, the pinned editions that define the current cycle, the Body of Knowledge area by area with a preparation method for each, scoring in API’s own terms, and a study plan. Everything factual comes from API’s published materials recorded in the internal sources section; where those materials direct candidates to confirm a current detail — a fee, a window date — the guide says so rather than printing an unverified figure.
Which examination is this?
This page covers one credential only: the API 570 Piping Inspector certification, administered by the American Petroleum Institute (API) through its Individual Certification Programs (ICP). It is not a guide to API 510 (pressure vessels) or API 653 (storage tanks): each API program has its own Body of Knowledge and its own pinned editions, — the damage-mechanism list, the repair-article list, the process-code content, and several editions differ between programs, and this guide prints only this program’s. It is built to one cycle only: the Body of Knowledge and effectivity sheet for the February 2027 and June 2027 examinations — the only two windows the current documents name.
The real exam at a glance
| Fact of record | Detail |
|---|---|
| Credential | API 570 Piping Inspector, administered by API’s Individual Certification Programs (ICP); the program is ANSI-accredited under ISO/IEC 17024 |
| Format | 170 questions: 140 scored and 30 unidentified pretest questions that do not affect the score. 110 closed-book questions and 60 open-book questions |
| The exam day | 7.5 hours in total: a short tutorial, 165 minutes (2.75 hours) closed-book, a 45-minute lunch break, and 225 minutes (3.75 hours) open-book — 390 minutes of testing time |
| Delivery | Computer-based at Prometric test centers, in person only. API states expressly that the API 570 examination is not available for remote testing |
| References on the day | Papers, notes, and books are not allowed in the test center. During the open-book part only, PDF documents of the pertinent codes and standards are provided on the exam computer, limited to the sections listed on the effectivity sheet. A calculator, scratch paper, and pencil are provided |
| Item formats | The majority of questions are multiple-choice, single-answer. API is gradually adding Alternative Item Types — such as drag and drop, ordered response, multiple response, and matching — into its examinations |
| Scoring | Prometric reports a scaled score on a scale from 200 to 500. The passing scaled score is 400, as API publishes it. Score reports show the converted scaled score, not the number of questions answered correctly |
| Eligibility | Education plus piping experience acquired within the last 10 years, documented on the application and verified by API. No training course is required to sit the exam |
| Current cycle | Body of Knowledge and effectivity sheet for the February 2027 and June 2027 examinations. Confirm current window dates and all fees at api.org when you apply |
| Application | Apply through API’s ICP Portal. An application is valid for 6 months from the first exam date requested. After approval, API issues an Exam Authorization with an Eligibility ID and the candidate books a Prometric seat inside the approved window |
| Examination fee | Confirm the current fee on API’s ICP Schedules & Fees page at api.org when you apply. This page prints no fee figure |
| Keeping the credential | Certification runs in 3-year terms, with work, continuing professional development, and a 6-year web quiz — see the recertification section below |
Which editions does the current cycle pin?
The effectivity sheet is the examination’s reading list with the editions fixed. For the February 2027 and June 2027 cycle, API pins the following — transcribed from the effectivity sheet itself, and the editions the companion practice program is built to:
- API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, 5th Edition (February 2024).
- API RP 571, Damage Mechanisms Affecting Fixed Equipment in the Refining Industry, 3rd Edition (March 2020) — only Section 2 (Definitions) and fifteen listed mechanisms: amine stress corrosion cracking; atmospheric corrosion; boiler water and steam condensate corrosion; caustic corrosion; caustic stress corrosion cracking; chloride stress corrosion cracking; corrosion under insulation; erosion and erosion-corrosion; galvanic corrosion; hydrochloric acid corrosion; mechanical fatigue (including vibration-induced fatigue); microbiologically influenced corrosion; soil corrosion; sour water corrosion (acidic); and sulfidation. No other RP 571 mechanism is in scope.
- API RP 574, Inspection Practices for Piping System Components, 5th Edition (February 2024), Addendum 1 (March 2025).
- API RP 576, Inspection of Pressure-relieving Devices, 5th Edition (September 2024) — only Sections 5, 6.1–6.5, and 7.
- API RP 577, Welding Processes, Inspection, and Metallurgy, 3rd Edition (October 2020). No errata is listed for RP 577 on this program’s effectivity sheet.
- API RP 578, Material Verification Program for New and Existing Assets, 4th Edition (February 2023).
- ASME Boiler and Pressure Vessel Code, 2023 Edition — limited to Section V, Nondestructive Examination, Articles 1, 2, 6, 7, 9, 10, and 23 (Section SE-797 only); and Section IX, welding only. Note the edition: 2023, not 2025.
- ASME B16.5, Pipe Flanges and Flanged Fittings, 2020 Edition (issued January 2021) — in the areas the Body of Knowledge lists: scope, pressure-temperature ratings, markings, materials, dimensions, test, limiting dimensions of gaskets, and methods for establishing pressure-temperature ratings.
- ASME B31.3, Process Piping, 2024 Edition (issued December 2024) — inside the Body of Knowledge’s stated limits, including its long exclusion list for design-criteria and calculation topics.
- ASME PCC-2, Repair of Pressure Equipment and Piping, 2022 — only Articles 101, 201, 206, 209, 210, 211, 212, 304, 305, 306, 501, and 502, each with its appendices.
No pinned edition rolled forward from the previous cycle. The February and June 2027 effectivity sheet is identical to the 2026 sheet — same editions, same mechanism list, same relief-device sections, same repair articles — and the Body of Knowledge is identical in content apart from its window header. The change is in the window structure: the 2026 cycle named three windows, and the current documents name two, February 2027 and June 2027. The traps are therefore cross-program, not cross-cycle: the ASME BPVC 2025 Edition pinned for API 510’s current cycle is not this program’s pin; the RP 577 errata printed on API 510’s sheet does not appear on this one; and study material built to API 570’s 4th Edition, RP 574’s or RP 576’s 4th Edition, B31.3 2022 or earlier, or B16.5 2017 is superseded for this examination. A recertification effectivity sheet dated April 2023 still circulates pinning those superseded 4th editions — it scopes the 6-year web quiz only. Weld-procedure review is also bounded: the common arc processes, one process per record set, one filler metal per process, a single supporting qualification record, on a defined set of base-metal groups, with no dissimilar joints, no overlay, hard-facing, or buttering, and no supplemental essential variables. Brazing is not covered.
Who can take this exam, and what does it certify?
Qualification combines education with experience related to in-service metallic piping systems. The experience must have been acquired within the last 10 years while employed by, or under contract with, an authorized inspection agency as defined in API 570; it must be documented on the application, and API verifies it. As API publishes the table: a bachelor’s degree or higher in engineering or technology — or 3 or more years of military service in a technical role — requires 1 year of supervision or performance of inspection activities as described in API 570. A 2-year degree or certificate in engineering or technology — or 2 years of military service in a technical role — requires 2 years of design, construction, repair, operation, or inspection of in-service piping systems, of which 1 year must be supervision or performance of API 570 inspection activities. A high school diploma or equivalent requires 3 years on the same terms, including the same inspection year. With no formal education, 5 or more years are required, including the same inspection year. No training course is required to sit the exam, and API does not endorse test-preparation classes. The credential is awarded by API alone; PassProfessor does not certify inspectors and does not enrol candidates — candidates apply through API’s ICP Portal and sit at Prometric.
What makes this test demanding?
Three features make this examination harder than a single-code test. First, the two-part structure: 110 closed-book questions test what an inspector is expected to know cold — intervals, responsibilities, inspection types, damage-mechanism recognition, welding and examination essentials, stated factors and rules — then, after a lunch break, 60 open-book questions test how well the same inspector can find and apply detailed information under time pressure, in a provided-PDF environment limited to the effectivity sheet’s sections. Second, the calculation load: corrosion rates, remaining life, intervals, quality factors, minimum thickness, test pressures, and flange determinations are worked, not recalled. Third, the breadth of the pinned library, each publication included only to a stated depth — the exclusions are part of the syllabus. Sustained practice mixing closed-book recall, record review, and open-book-style application is therefore the centre of serious preparation.
The outline, area by area
API’s Body of Knowledge has five sections: calculations for evaluating thickness measurements, inspection intervals, and piping integrity; welding procedure and qualification evaluation; nondestructive examination; practical knowledge — general; and practical knowledge — specific, publication by publication. API publishes no weighting for this examination — no percentage or question count per topic. The nine areas below divide the practice bank; their counts are a PassProfessor allocation, set in proportion to the Body of Knowledge’s emphasis, and they are never API’s weighting.
| Practice area | Practice questions |
|---|---|
| Thickness, Intervals and Piping Integrity Calculations | 320 |
| API 570 Inspection, Rating, Repair and Alteration | 210 |
| Nondestructive Examination | 190 |
| Welding Procedure and Qualification Evaluation | 170 |
| Damage Mechanisms (API RP 571) | 160 |
| Inspection Practices and Pressure-Relieving Devices | 130 |
| Process Piping, Flanges and Practical Knowledge | 120 |
| Welding Processes, Metallurgy and Material Verification | 100 |
| Repair Methods (ASME PCC-2) | 100 |
| Total | 1,500 |
What do the thickness, interval, and piping integrity calculations cover?
Corrosion rates and remaining life; inspection interval determination; weld joint quality factor and casting quality factor, including increasing the joint factor by supplemental examination, as used inside internal-pressure problems; internal-pressure minimum and required thickness of straight pipe; maximum allowable working pressure of corroded pipe, compensating for expected corrosion loss at the next inspection; corrosion-allowance compensation; minimum required thickness of a permanent blank; hydrostatic and pneumatic leak test pressures; impact testing — the minimum metal temperature exempt from impact testing and the required Charpy values; preheat and heat-treatment determinations; total thermal expansion between temperatures; and the flange determinations the Body of Knowledge lists — working pressure and test pressures for a flange of specified material and temperature, minimum flange dimensions, and selecting the most suitable flange from pressure, temperature, and material. Calculation questions are oriented to existing in-service piping, not new piping, in both unit systems.
How should you prepare for the calculations? Work them, in both unit systems, until the sequence is automatic. Keep the fenced-out families out of your drilling: the Body of Knowledge excludes most of the process piping design-criteria material, straight pipe under external pressure, curved and mitered segments, branch-connection calculations, closures, most blank and flange pressure design, reducers, flexibility and movement calculations, and relief-valve sizing — none of it is a tested calculation family here.
Remaining life is the hinge number: most interval and repair decisions turn on computing it correctly.
What does the API 570 code area cover?
The code itself, applied: how inspection is organized, the certification requirements behind the credential, and the types of inspection; inspection planning, piping classes, records, and reports; repairs and alterations to piping systems; rerating; pressure testing after a repair, alteration, or rerating; and corrosion and minimum-thickness evaluation in applied situations. API 570 itself is subject to testing in full — no section exclusion is published for it.
How should you prepare for the API 570 code area? Study it as decisions, not as text: given this finding, this history, and this circuit, what does the code require next — inspect, repair, alter, rerate, test, or return to service — and who is responsible for each step? The area rewards candidates who can run the code’s logic forward from a described situation.
Where API 570 and ASME B31.3 rules overlap on welding, API 570 takes precedence — record-review items key accordingly, and so does the practice.
What does nondestructive examination cover?
The general requirements article of Section V; radiographic examination; liquid penetrant examination, including its mandatory appendices named in the Body of Knowledge; magnetic particle examination, limited to the yoke and prod techniques; visual examination; leak testing, including the direct-pressure bubble test appendix; ultrasonic thickness measurement under the SE-797 section; and the general examination requirements carried in ASME B31.3 and API 570.
How should you prepare for nondestructive examination? Learn each method as a pairing of capability and limit: what it finds, what it cannot find, and what it requires of the surface and the material. Note that visual examination and leak testing are in this program’s article set even though they are absent from a neighbouring program’s.
Match the method to the discontinuity and the material: an option naming a sound method for the wrong condition is the distractor the examination favours.
What does welding procedure and qualification evaluation cover?
Welding procedure specifications, procedure qualification records, and welder performance qualifications checked for compliance; essential and nonessential variables and the mechanical tests a procedure qualification requires; welder qualification, processes, filler metals, and base-metal limits; and the general welding requirements in ASME B31.3 and API 570. Examination record review is bounded: the common arc processes — shielded metal arc, gas tungsten arc, gas metal arc, and submerged arc — one process per record set, one filler metal per process, a single supporting qualification record, on a defined set of base-metal groups, with no dissimilar-metal or dissimilar-thickness joints and no overlay, hard-facing, or buttering. Editorial record content — revision levels, company names, record numbers and dates, laboratory names — is not the knowledge, though certification of a qualification record by signature and date is.
How should you prepare for welding qualification? Practise reading records against the variables: cover the record, name the essential variables the described weld engages, then check. The skill is spotting the one change that outruns the supporting qualification.
A record can be complete, signed, and still wrong: the deciding feature is usually a variable that changed beyond what the supporting qualification covers.
What do damage mechanisms cover?
API RP 571’s terms and definitions section, and the fifteen mechanisms listed in the pinned-editions section above — no others. The list is this program’s own: mechanisms that appear on other API programs’ lists but not on this one — brittle fracture, high-temperature hydrogen attack, naphthenic acid corrosion, and wet hydrogen sulfide damage among them — are out of scope here, while galvanic corrosion, mechanical fatigue, microbiologically influenced corrosion, soil corrosion, and sour water corrosion are pinned here and must not be omitted.
How should you prepare for damage mechanisms? Study each mechanism as a four-part signature — susceptible materials, the environment that drives it, the temperature and stress conditions it needs, and where the damage appears — because items present three or four of those features and ask the candidate to complete the identification.
Mechanism items turn on the combination: material, environment, temperature, and stress together.
What do inspection practices and pressure-relieving devices cover?
API RP 574, inspection practices for piping system components — the whole document — and API RP 576, inspection of pressure-relieving devices, in Sections 5, 6.1–6.5, and 7 only. A different section set for RP 576 circulates in the recertification document — it scopes the web quiz only and is not this examination’s scope.
How should you prepare for inspection practices and relief devices? Prepare in the field’s order: what is examined, in what sequence, with what evidence recorded, and what finding triggers what action. Relief-device content deserves deliberate time — the Body of Knowledge does not treat it as peripheral.
A relief device is part of the piping system’s integrity case, not an accessory: inspection findings on the device carry the same weight as findings on the pipe.
What do process piping, flanges, and practical knowledge cover?
ASME B31.3 process piping rules in general, inside the Body of Knowledge’s limits; ASME B16.5 flanges in the eight listed areas — scope, pressure-temperature ratings, markings, materials, dimensions, test, limiting dimensions of gaskets, and methods for establishing pressure-temperature ratings; and piping materials, fabrication problems, and deterioration in general practice. This is the area with no counterpart in the vessel program: the construction code and the flange standard are examined here in their own right.
How should you prepare for process piping and flanges? Treat the flange standard as a lookup discipline: rating questions give a material, a class, and a temperature, and the answer is read off their combination — practise the lookups until they are fast.
Flange items are lookup-and-apply items: the rating follows from material, class, and temperature together — never from any one of them alone.
What do welding processes, metallurgy, and material verification cover?
API RP 577 across the whole document as pinned for this program — welding processes, inspection, and metallurgy — and API RP 578 across the whole document: the material verification program for new and existing assets, including positive material identification practice and program requirements.
How should you prepare for welding processes and material verification? Keep the two halves distinct: process and metallurgy knowledge on one side, verification-program discipline on the other. Items often hinge on whether a described step belongs to the welding process itself or to the verification program. Note the edition discipline: this program’s sheet lists no errata for RP 577.
A material verification failure is an integrity failure found early.
What do repair methods cover?
ASME PCC-2’s twelve listed articles for this program, each with its appendices: scope and organization and repair concepts; insert plates, full encirclement sleeves, and fillet-welded patches; alternatives to postweld heat treatment, in-service welding, and weld buildup and overlay; flaw excavation and weld repair and flange repair and conversion; mechanical clamp repair; and pressure and tightness testing, including examination in lieu of a pressure test. Articles outside the list are not on this examination — and the list itself differs from the vessel program’s: this program adds the full encirclement sleeve and mechanical clamp articles and does not include several articles the vessel program pins.
How should you prepare for repair methods? Prepare by situation: for each article, hold the damage it addresses, the conditions it requires, and the verification it demands afterwards. Examination items describe a repair situation and ask which method fits — or which condition rules a method out.
The repair question is never only whether a method exists: it is whether the method fits this line, this damage, and these conditions.
How is API 570 scored?
API publishes the standard as a scaled score. Prometric uses a scale from 200 to 500 for API’s Individual Certification Programs examinations, and the passing scaled score for the API 570 examination is 400. A scaled score is not a percentage of questions answered correctly, and API publishes no percentage pass mark, no raw pass mark, and no number-correct threshold for this examination. API’s equating adjusts for form difficulty, so the number of correct answers corresponding to the passing scaled score may differ slightly between forms. Score reports show the converted scaled score, not the number answered correctly; reports are emailed by Prometric within 24 hours of testing, and results upload to the ICP Portal within 3 business days. API will not disclose or return the contents of a failed examination. The practical consequence: there is no published percentage to aim practice at, and any percentage a vendor attaches to this examination is that vendor’s invention. Aim at breadth and reliability instead — the scaled standard is a fixed level of minimum knowledge, not a curve.
How do inspectors keep the credential?
Certification is valid for a 3-year term. At each recertification the inspector shows two things: work — a minimum of one fifth of working time over the most recent 3-year period spent performing or supervising in-service piping inspection activities as described in API 570 (inspectors not actively engaged must take the full examination again); and continuing professional development — 24 CPD hours per 3-year cycle, relevant to inspection and mechanical integrity, spread across at least two categories, with proof uploaded to the ICP Portal. Recertification is applied for online in the ICP Portal, from 90 days before expiry through a 90-day grace period after it; late fees apply after expiry, and an inspector who has not applied by the end of the grace period must take a full examination again. Every 6 years — every other recertification — the inspector must also pass an online, open-book web quiz on changes to the relevant codes: 25 questions in 4 hours, pausable up to three times, available in the same window around expiry; failing once allows a retake, failing a second time ends recertification. The web quiz is scoped by a separate recertification effectivity sheet, pinning superseded editions and a different relief-device section set — never conflate the two. Since June 2025, API issues its ICP certifications digitally.
An honest note on format
Every PassProfessor practice question is a single-answer, four-option item. The real examination’s majority format is also multiple-choice, single-answer — but API is gradually adding Alternative Item Types (drag and drop, ordered response, multiple response, and matching), the real sitting splits into closed-book and open-book parts, and the open-book part runs in Prometric’s provided-PDF environment, limited to the effectivity sheet’s sections. Practice here does not reproduce that environment, those item types, or the two-part sitting, and no honest provider can claim that it does. Practice builds the knowledge and calculation skills the Body of Knowledge requires; results are a study gauge, not a prediction of a scaled score, and no practice percentage converts into one.
How should you read your practice results?
An overall practice score is the least useful number a candidate owns. The useful reading is by area: which areas are secure, which are inconsistent — right on recall, wrong on record review or calculation — and which are simply thin. Each pattern has a different repair. A secure area needs only maintenance in mixed practice. An inconsistent area usually means one skill inside it is lagging and needs slower, worked practice on that skill. A thin area needs study in the pinned publication before drilling, because drilling untaught material rehearses guessing. Revisit each repaired area after a gap of several days, in mixed practice, so retention — not recognition — carries the result. Read the two examination styles separately: a candidate can be strong closed-book and weak at open-book-style application, and the repairs differ.
A study plan that follows the outline
- Start with the calculations. Thickness, intervals, and piping integrity carry the practice bank’s largest allocation because the Body of Knowledge’s required skills are densest there — and calculation fluency, once built, supports the code, repair, and practical areas that use its results.
- Take the API 570 code area next, then work area by area, drilling as you go. Take each area’s practice after studying it and repair misunderstandings while the material is fresh.
- Read results by area, not just by score. A single overall figure hides the thin area; on a two-part examination it also hides which sitting style — closed-book or open-book — is costing you.
- Hold the pinned editions open beside you for open-book-style work. Practise finding and applying, not only remembering: know which publication, and which part of it, answers each kind of question, within the effectivity sheet’s stated limits.
- Finish with full simulations. Sit timed practice at the real sitting’s total testing time, in both styles, so retrieval mixes areas the way the real day does — and confirm your window dates and fees at api.org as you apply.
Frequently asked questions
How many questions are on the API 570 exam, and how long is it? 170 questions in a 7.5-hour day: 140 scored and 30 unidentified pretest questions that do not affect the score, split into 110 closed-book questions in 165 minutes and 60 open-book questions in 225 minutes, with a 45-minute lunch break between the parts.
What score passes the API 570 exam? A scaled score of 400 on Prometric’s 200 to 500 scale, as API publishes it. A scaled score is not a percentage of questions answered correctly; API publishes no percentage pass mark and no number-correct threshold, and the number of correct answers corresponding to the passing scaled score may differ slightly between forms because of equating.
Can I take the API 570 exam from home? No. API states expressly that this examination is not available for remote testing; it is taken in person at a Prometric test center.
What references can I use during the exam? None of your own — papers, notes, and books are not allowed in the test center. During the open-book part only, PDF documents of the pertinent codes and standards are provided on the exam computer, limited to the specific sections listed on the effectivity sheet. A calculator, scratch paper, and pencil are provided.
Which editions does the current exam test? The editions pinned on the effectivity sheet for the February 2027 and June 2027 cycle: API 570, 5th Edition; RP 571, 3rd Edition, Section 2 and fifteen listed mechanisms only; RP 574, 5th Edition with Addendum 1; RP 576, 5th Edition, in limited sections; RP 577, 3rd Edition, with no errata listed for this program; RP 578, 4th Edition; the ASME Boiler and Pressure Vessel Code, 2023 Edition, in the stated sections; ASME B31.3, 2024 Edition; ASME B16.5, 2020 Edition; and ASME PCC-2, 2022, in twelve listed articles. The pinned-editions section above gives the full list.
Does API publish how the exam is weighted by topic? No. API publishes no weighting, percentage, or per-topic question count for this examination. The area counts in this guide are a PassProfessor allocation of the practice bank, set in proportion to the Body of Knowledge’s emphasis — they are not API’s weighting.
What experience do I need to qualify? Education plus piping experience acquired within the last 10 years with an authorized inspection agency, documented and verified by API: 1 year of inspection activity with an engineering or technology degree (or the military-service equivalent), rising through 2 and 3 years at the lower education levels, to 5 or more years with no formal education — in each case including 1 year supervising or performing API 570 inspection activities where the table requires it. The eligibility section above gives the full published table.
How often is the exam offered? In windows across the year. The current cycle covers the February 2027 and June 2027 windows — the two windows the current effectivity documents name. Confirm the current window dates and application deadlines at api.org when you apply.
What does the exam cost? Confirm the current fee on API’s ICP Schedules & Fees page at api.org when you apply — fees are confirmed there at application time, and this guide prints no fee figure.
What happens if I do not pass? Your score report — emailed by Prometric within 24 hours — shows your converted scaled score, so you can see the distance from the passing standard. API will not disclose or return the contents of a failed examination. An application is valid for 6 months from the first exam date requested; sitting again outside it requires a new application.
How do I keep the credential once I earn it? Recertify every 3 years in the ICP Portal: show the published work requirement and 24 continuing professional development hours across at least two activity categories per cycle, and pass the online open-book web quiz on code changes every 6 years.
Are these the real exam questions? No. Every question in the companion program is an original PassProfessor practice question written to API’s published Body of Knowledge. API does not release its examination questions, and no provider can offer them.
Does the practice match the real exam’s format exactly? No, and this guide does not claim that it does. Practice items are single-answer, four-option questions in a single sitting; the real examination also includes Alternative Item Types being added gradually, and splits into closed-book and open-book parts in Prometric’s provided-PDF environment.
When will enrollment open? The program is in the works. Join the notify list on this page and we will email you when enrollment opens.
Disclaimer
PassProfessor is an independent exam-preparation provider; this program is not endorsed by, affiliated with, or sponsored by the American Petroleum Institute (API). API 570 is a certification program of the American Petroleum Institute. This program is examination preparation only: the details on this page are drawn from the official sources recorded in this guide’s internal sources section and are current as of November 2026; API’s official publications govern if anything here differs from them. The credential is awarded by API alone when its requirements are complete; this program confers no credential.