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AS9100 vs EN 9100 vs JISQ 9100: The 9100-Series Decision Guide

One Standard, Three Regional Publications

AS9100, EN 9100, and JISQ 9100 are identical technical standards. All three are regional publications of the IAQG (International Aerospace Quality Group) parent standard, 9100:2016. The technical clauses, audit requirements, calibration controls, configuration management rules, and product-safety expectations are word-for-word the same across all three publications. What differs is the issuing body — SAE International for AS9100 in the Americas, CEN (European Committee for Standardization) for EN 9100 in Europe, and JSA (Japanese Standards Association) for JISQ 9100 in Asia-Pacific — the accreditation bodies that qualify certification auditors, and the cost of certification in local currency. Mutual recognition is automatic and enforced by the IAQG OASIS global database, where every 9100-certified organization's certificate is registered and searchable by prime contractors globally.

The IAQG Parent and Its Regional Publications at a Glance

The parent IAQG standard 9100:2016 is maintained by the International Aerospace Quality Group, a cooperative of aerospace primes and standards bodies spanning the Americas, Europe, and Asia-Pacific. Each region publishes the standard through its own national body: SAE International issues AS9100 Rev D in the Americas; CEN issues EN 9100:2018 in Europe, which is then adopted as national publications DIN EN 9100 (Germany), BS EN 9100 (UK), NF EN 9100 (France), and UNI EN 9100 (Italy); JSA issues JISQ 9100:2016 in Asia-Pacific, commonly abbreviated JISQ 9100 or JIS Q 9100. Updates to the IAQG parent flow through to each regional publication on a roughly synchronized cadence — the 2016 parent update appeared as AS9100 Rev D in 2016, EN 9100:2018 in 2018, and JISQ 9100:2016 on the same cycle.

Which Standard to Certify to — The Decision Rule

The decision is simpler than most suppliers think. Pick the publication that (a) your primary prime contractor expects to see on your certificate, and (b) your accessible certification body is accredited to audit under. Boeing, Northrop Grumman, Lockheed Martin, and most US primes expect AS9100. Airbus, Safran, Rolls-Royce, Dassault, Leonardo, MTU, Thales, and most EU primes expect EN 9100 (or the relevant national adoption). Mitsubishi Heavy Industries, Kawasaki, Subaru Aerospace, and most Japanese primes expect JISQ 9100. If you sell to primes in multiple regions, you do NOT need multiple certificates — one 9100-series certificate is globally recognized via IAQG OASIS. Suppliers who certify twice are wasting roughly €8,000-€25,000 per year depending on organization size.

Calibration Requirements Are Identical

Section 7.1.5 of every 9100-series standard imposes the same calibration regime: calibration at defined intervals, traceability to national metrology institutes (NIST in the US, PTB / NPL / LNE / INRIM / BEV / VTT MIKES / RISE in the EU, NMIJ in Japan, NIM in China), out-of-tolerance reverse traceability, and measurement uncertainty reported per ISO/IEC Guide 98-3 (GUM) on every certificate. First Article Inspection — AS9102 in the Americas, EN 9102 in Europe, JISQ 9102 in Japan — likewise imposes identical calibration-evidence requirements on every measuring device used during FAI. If your calibration management system meets any one of the three, it meets all three.

Certification Body Landscape

Certification bodies are accredited by national accreditation bodies, which themselves are mutually recognized via the International Accreditation Forum (IAF) and the IAQG OASIS system. In the Americas, ANAB accredits most certification bodies. In Europe, each member state has its own: DAkkS (Germany), UKAS (United Kingdom), COFRAC (France), Accredia (Italy), ENAC (Spain), RvA (Netherlands), SWEDAC (Sweden). In Japan, JAB. Common certification bodies operating across all three regions include BSI, DNV, LRQA, Bureau Veritas, SGS, TÜV SÜD, and TÜV Rheinland. SAI Global and DEKRA are also widely accepted. A single certification body typically holds accreditation under one regional publication per site; one audit team usually cannot issue a certificate under AS9100 and EN 9100 simultaneously.

Cost Comparison

Certification costs are driven by organization size, complexity, and number of sites. Typical three-year cycle costs: for a 50-person single-site aerospace manufacturer, AS9100 Rev D runs roughly $18,000-$35,000 USD (initial + two surveillance audits + recertification); EN 9100:2018 roughly €15,000-€30,000 in most EU countries (Germany and France trend higher, Southern Europe lower); JISQ 9100 roughly ¥2.5M-¥4.5M in Japan. Recertification every three years. Smaller suppliers (10-20 people) pay 40-60% less; multi-site operations pay per-site. Implementation consulting is additional and is usually the larger cost — allow $30,000-$80,000 for first-time certification readiness.

Mutual Recognition and Global Operation

The practical point: one 9100-series certificate is enough to serve primes globally. Mutual recognition is enforced by OASIS (Online Aerospace Supplier Information System), operated by the IAQG. Every certified organization gets an OASIS ID; primes worldwide check OASIS before awarding contracts. An Airbus procurement manager verifying a supplier's EN 9100 certificate uses the same OASIS lookup that a Boeing procurement manager uses to verify AS9100. The only exceptions are contract-specific flowdowns that require certification under a specific regional publication — these are rare and are always documented in supplier purchase order terms.

Which Primes Expect Which Publication

Americas (AS9100 expected): Boeing, Lockheed Martin, Northrop Grumman, Raytheon Technologies, General Dynamics, L3Harris, Textron, Bombardier, Pratt & Whitney, Collins Aerospace, Spirit AeroSystems, Embraer. Europe (EN 9100 and national adoptions expected): Airbus, Airbus Defence and Space, Safran, Rolls-Royce, Dassault Aviation, Leonardo, MTU Aero Engines, Thales, Liebherr Aerospace, Saab, BAE Systems, GKN Aerospace, ITP Aero, Meggitt. Asia-Pacific (JISQ 9100 expected): Mitsubishi Heavy Industries, Kawasaki Heavy Industries, Fuji Heavy Industries / Subaru, IHI Corporation, ShinMaywa. Note: Airbus operations in Mobile, Alabama expect AS9100 on US-domiciled suppliers, not EN 9100 — place of manufacture matters, not nationality of parent company.

Key Takeaways

(1) AS9100, EN 9100, and JISQ 9100 are the same standard. Don't over-think which one to certify to. (2) Pick the one your prime contractor expects and your certification body is accredited for. (3) One certificate is globally recognized via IAQG OASIS. Do not certify twice unless a specific prime contract flow-down requires it. (4) Calibration requirements are identical across all three — a calibration management system that meets one meets all. (5) Cost-wise, EN 9100 in Europe is roughly similar to AS9100 in North America on a per-head basis; JISQ 9100 trends slightly higher due to smaller certification body competition in Japan. (6) Your supplier quality team should search OASIS to verify supplier certifications regardless of which regional publication you care about — it's a single database.

Frequently Asked Questions

Are AS9100, EN 9100, and JISQ 9100 the same standard?

Technically yes. All three are regional publications of the same IAQG 9100 parent standard with identical numbered clauses, identical calibration requirements, and identical audit expectations. Administrative differences exist: the issuing body, the accreditation landscape, and the local currency cost of certification. Mutual recognition is automatic via the IAQG OASIS database.

Which 9100-series standard should my company certify to?

Pick the one your primary prime contractor expects to see on your certificate and that your accessible certification body is accredited to audit under. Boeing / Northrop / Lockheed primes expect AS9100; Airbus / Safran / Rolls-Royce expect EN 9100; Mitsubishi / Kawasaki expect JISQ 9100. If you sell to primes across multiple regions, one 9100-series certificate is globally recognized — you don't need multiple.

Do I need separate calibration procedures for AS9100 vs EN 9100?

No. Section 7.1.5 of every 9100-series standard imposes the same calibration requirements: defined intervals, traceability to national metrology institutes, out-of-tolerance reverse traceability, and GUM-compliant expanded uncertainty. A calibration management system that meets AS9100 meets EN 9100 and JISQ 9100 without modification.

How much does it cost to certify to EN 9100 vs AS9100?

Initial certification plus two surveillance audits over a three-year cycle for a 50-person single-site aerospace manufacturer typically runs $18,000-$35,000 USD for AS9100 or €15,000-€30,000 for EN 9100 — roughly equivalent once exchange rates are applied. JISQ 9100 in Japan is roughly ¥2.5M-¥4.5M, slightly higher due to a smaller competitive market of certification bodies. Implementation consulting ($30,000-$80,000) is usually the larger cost.

Where can procurement verify a supplier's 9100-series certification?

The IAQG OASIS database (Online Aerospace Supplier Information System) is the single global source of truth. Every 9100-series certified organization registers an OASIS ID, and every Airbus, Boeing, Safran, Rolls-Royce, Mitsubishi, and other prime procurement team checks OASIS before awarding flight hardware contracts. A valid OASIS entry for any regional publication satisfies suppliers globally.

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