API 510 Pressure Vessel Inspector Certification — India 2026
API 510 certification path in India for authorised pressure vessel inspectors. Examination centres in Mumbai, Hyderabad, Delhi, and Chennai. 2026 fee structure ₹60K-₹80K for the API exam plus ₹35K-₹1.2L for accredited prep classes. Salary ranges ₹15L-₹35L at Reliance Industries, IOCL, BPCL, ONGC, and EIL inspection programs.
Need the NDE behind your API 510 programme?
Atlantis carries out the thickness surveys and NDE and reviews the data; your Authorized Inspector stays inspector of record. Atlantis ERP keeps the readings in one system.
API 510 is issued by API and examined at Prometric centres worldwide, so the credential earned from India is the same one held in Houston. Eligibility is set by education plus documented pressure-vessel inspection experience: one year with an engineering degree, two years with a two-year technical certificate, three years with a high-school diploma, five years with no formal education.
The credential is identical worldwide; only the logistics are local. API administers the Individual Certification Program, publishes an effectivity sheet naming the exact editions of API 510, API RP 571, API RP 572, API RP 576, API RP 577, ASME Section V, ASME Section VIII Division 1 and ASME Section IX that are in scope, and delivers the exam at Prometric centres — Mumbai, Hyderabad, Delhi NCR, Chennai, Bangalore, Pune, Kolkata and Ahmedabad among them. The exam runs in two parts: a closed-book portion testing recall, then an open-book portion in which only the printed publications API names may be used. Eligibility is decided on education plus documented pressure-vessel inspection experience, not on NDT method certification. That distinction shapes the Indian route, and it is why third-party inspection firms are the usual entry point: a TPI assignment generates the signed inspection-day records that both the original application and every recertification cycle demand.
Source: API Individual Certification Programs — API 510 Pressure Vessel Inspector Certification Requirements and Body of Knowledge, with the published exam effectivity sheet; API 510, Pressure Vessel Inspection Code, in the edition named on that sheet. Exam delivery by Prometric.
| Highest education | Pressure-vessel inspection experience required | Where Indian candidates normally accrue it | What does not count toward it |
|---|---|---|---|
| BE, BTech or higher in engineering or technology | 1 year | TPI assignments — Bureau Veritas India, TUV, DNV, SGS, Velosi — on refinery turnarounds | Design or fabrication engineering carrying no inspection duty |
| Two-year diploma or certificate in engineering or technology | 2 years | Operator inspection cells at IOCL, BPCL, HPCL, ONGC and Reliance | NDT technician hours with no inspection or supervision responsibility |
| High school diploma or equivalent | 3 years | Contractor NDT crew progressing into an inspection role | QA document control and records administration |
| No formal education | 5 years | Long-service plant inspection at a single operator | Operations and maintenance work outside inspection scope |
Does ASNT Level II count as API 510 experience?
Not by itself. API measures eligibility in pressure-vessel inspection experience — supervising or performing inspection activities — not in NDT method certification. ASNT Level II in UT, MT and PT strengthens the application and is increasingly expected by Indian employers, but hours spent shooting film or taking thickness readings without inspection responsibility do not satisfy the experience requirement.
How long is API 510 valid and what does recertification require?
Three years. The first recertification is by application demonstrating continued work in pressure-vessel inspection across the cycle, which is why signed inspection-day records matter from the first assignment. The second cycle escalates to a recertification examination. Letting the certification lapse means re-entering through the full original examination rather than through a renewal route.
Which publications can I use in the open-book portion?
Only those API names on the effectivity sheet for your exam window, in the editions listed: API 510 itself plus API RP 571, 572, 576 and 577, ASME Section V, Section VIII Division 1 and Section IX. They must be printed copies and Prometric inspects them at the door. Tabbing and highlighting are permitted; handwritten notes are not.
Can I sit API 510 while on a Gulf assignment instead of in India?
Yes. API ICP exams are delivered at Prometric centres worldwide, so a candidate on rotation books in Dubai, Abu Dhabi, Dammam or Doha exactly as they would in Mumbai, against the same body of knowledge and the same effectivity sheet. Register through api.org well ahead of the window — slot availability, not eligibility, is the usual constraint.
What do API 510 holders earn in India compared with a Gulf rotation?
India-domestic bands run Rs 8L to Rs 15L at one to three years post-certification, Rs 15L to Rs 25L at the Reliance Jamnagar, IOCL and BPCL tier, Rs 25L to Rs 40L at seven to twelve years, and Rs 40L to Rs 65L+ at lead level. Indian passport-holders on Middle East rotations run $80K to $140K tax-free plus housing and per diem.
Do I still need API 510 if I already hold API 570 or API 653?
Yes, wherever the scope is pressure vessels. The three are separate credentials against separate codes: 510 for pressure vessels, 570 for in-service piping, 653 for aboveground storage tanks. Holding more than one is common in Indian refinery inspection cells and lifts the senior band, because a single inspector can then cover an entire unit rather than one equipment class.
Candidates preparing for this exam can start the certification pathway at Atlantis NDT training and certification.
Frequently Asked Questions
Where can I take the API 510 exam in India?
API 510 exams are administered by API at Prometric test centres across India. The most reliable centres are in Mumbai, Hyderabad, Delhi NCR, Chennai, Bangalore, Pune, Kolkata, and Ahmedabad. Slot availability varies by exam window — register on api.org well in advance (typically 8–12 weeks ahead of your preferred date). Prometric centres also handle ID verification, scratch-pad provision, and printed-code-book inspection at the door per API policy.
What salary can I earn as an API 510 inspector in India?
Junior (1–3 years post-cert): ₹8L–₹15L per annum permanent or ₹40K–₹70K/month contract. Mid-level (3–7 years): ₹15L–₹25L per annum at Reliance Jamnagar / IOCL / BPCL tier. Senior (7–12 years, often paired with API 570/653): ₹25L–₹40L per annum. Lead / Principal (12+ years, often ASNT Level III too): ₹40L–₹65L+ per annum. Indian passport-holders rotating to Middle East assignments typically earn $80K–$140K USD tax-free plus housing and per diem — a substantial uplift over India-domestic rates.
Which Indian employers prefer API 510 inspectors?
Operator-side: Reliance Industries (Jamnagar, Dahej), Indian Oil Corporation (IOCL refineries), BPCL, HPCL, ONGC, GAIL, Petronet LNG, CPCL, MRPL, Adani Group. Third-party inspection (TPI) firms: Bureau Veritas India, TÜV India, TÜV Rheinland, DNV, Lloyd’s Register, SGS, Apave, Velosi (Applus). EPC and contractor-side: L&T Hydrocarbon, Tata Projects, Engineers India Ltd (EIL), Petrofac. The TPI route is the most common starting point for Indian candidates — it builds the inspection-day documentation needed for API recertification.
Do I need ASNT Level II before taking API 510?
Not strictly required by API — eligibility is based on education and pressure-vessel inspection experience (1 year with engineering degree, 2 years with diploma, 3 years with high school). However, holding ASNT Level II in UT, MT, PT (the methods most relevant to vessel inspection) significantly strengthens your application and is increasingly expected by Indian employers. Most successful candidates pursue ASNT Level II in their primary methods first, then layer API 510 on top after accumulating 1–3 years of inspection experience.