AS9100 certification is the internationally recognized quality management standard built for the aerospace, aviation, and defense industries.
Based on ISO 9001 with added aerospace-specific requirements, it helps organizations manage risk, product safety, and supply chain quality.
This guide explains what AS9100 certification is, who needs it, why it matters, and what the certification process looks like, so aerospace suppliers can decide if certification is the right next step.
What is AS9100 Certification?
Definition of AS9100
AS9100 is a Quality Management System (QMS) standard developed for organizations that design, manufacture, distribute, or service products in the aerospace, aviation, and defense industries.
It addresses the sector's need for precision, safety, reliability, and traceability, giving organizations a structured framework for managing quality throughout the product lifecycle.
According to the International Aerospace Quality Group (IAQG), “the standard was created to standardize quality management requirements across the aviation, space, and defense industries while improving quality, schedule, and cost performance throughout the global supply chain.”
Certification is issued by accredited third-party certification bodies after an independent audit confirms an organization's QMS meets the standard's requirements.
How It Builds on ISO 9001
AS9100 incorporates every requirement of ISO 9001 while adding aerospace-specific controls, including enhanced risk management, product safety, counterfeit parts prevention, and stronger supplier oversight.
Organizations already certified to ISO 9001 typically find the transition more straightforward, since the underlying management system structure carries over. The table below summarizes the key differences:
Industries It Applies To
AS9100 applies to organizations throughout the aerospace supply chain, not just finished-aircraft manufacturers.
This includes component suppliers, machining and fabrication companies, maintenance and repair organizations, electronics manufacturers, and engineering firms supporting aerospace and defense programs.
Any organization contributing to aerospace, space, or defense products can pursue certification.
Who Needs AS9100 Certification?
AS9100 certification isn't legally required, but many aerospace and defense organizations expect or require it before awarding contracts. Industries that commonly need certification include:
Aerospace Manufacturers
Companies that design, build, or assemble aircraft, spacecraft, and related systems sit at the center of the supply chain's quality expectations, making certification a near-universal requirement for this group.
Aviation Suppliers
Organizations supplying parts, materials, or subassemblies into commercial or military aviation programs are frequently required to hold AS9100 certification as a condition of their supplier agreements.
Defense Contractors
Companies working on defense and government contracts often need certification to meet procurement requirements and demonstrate the rigorous quality controls these programs demand.
Precision Machining Companies
Machine shops producing tight-tolerance aerospace components frequently pursue certification, particularly when supplying directly to OEMs or Tier 1 suppliers.
Electronics and Component Suppliers
Manufacturers of electronic assemblies, connectors, and other components used in aerospace systems are increasingly expected to hold certification, given the safety-critical nature of these parts.
Companies Bidding on Aerospace Contracts
Even organizations without an existing aerospace customer often pursue certification proactively, since many contract opportunities are open only to certified suppliers.
Why Is AS9100 Certification Important for Aerospace Suppliers?
Meet Customer and Industry Requirements
Many aerospace manufacturers and defense organizations include AS9100 certification in their supplier qualification requirements.
Holding certification demonstrates that your organization has implemented a Quality Management System aligned with internationally recognized aerospace standards and signals your commitment to consistently meeting customer expectations.
Improve Product Quality and Consistency
AS9100 encourages standardized procedures for planning, production, inspection, and monitoring, helping build quality into everyday operations rather than relying on final inspection alone.
Organizations often see better process control, more consistent output, improved documentation, and reduced rework as a result.
Strengthen Risk Management
AS9100 emphasizes proactive risk management, encouraging organizations to identify risks in supplier performance, manufacturing processes, equipment reliability, and material traceability before they affect product quality or customer satisfaction.
Managing risk proactively helps reduce disruptions and supports more reliable operations.
Increase Business Opportunities
Certification opens access to contracts and customers otherwise unavailable, including defense and government programs where certification is a prerequisite for bidding.
“The IAQG reports that its certification scheme is recognized by authorities worldwide, including the U.S. FAA, the European Union Aviation Safety Agency (EASA), Japan's Acquisition, Technology & Logistics Agency (ATLA), and Defense Contract Management Agencies (DCMA).”
This is reinforcing the international credibility of certification for suppliers seeking new markets.
Build Customer Confidence
AS9100 certification provides independent verification that a Quality Management System has been assessed by an accredited certification body against internationally recognized aerospace standards.
The IAQG's Certification Scheme now covers more than 18,000 Aerospace Quality Management System (AQMS) certifications across over 25,000 certified sites worldwide, reflecting how broadly the industry relies on this shared framework to build trust between suppliers and customers.
Key Requirements of the AS9100 Standard
1. Risk-Based Thinking
AS9100 requires organizations to integrate risk management into everyday decision-making rather than reacting after problems occur.
This involves evaluating production processes, supplier performance, equipment maintenance, and process changes to reduce uncertainty and improve consistency before issues reach the customer.
2. Configuration Management
This aerospace-specific requirement ensures product design, changes, and documentation stay tightly controlled and traceable throughout the product lifecycle.
Effective configuration management helps organizations maintain accurate records, control engineering changes, and deliver products that match approved designs.
3. Product Safety
Organizations must consider product safety throughout design, production, inspection, storage, and delivery, addressing hazards that could affect the safe use of aerospace products in service.
Employees are expected to understand their responsibilities for maintaining product safety within their roles.
4. Counterfeit Parts Prevention
AS9100 requires documented processes for preventing counterfeit or suspect unapproved parts from entering the supply chain. Typical measures include purchasing from approved suppliers, material verification, traceability documentation, and receiving inspections.
5. Supplier Management
Because aerospace products pass through many hands before final assembly, organizations must evaluate, monitor, and manage external providers to ensure purchased products and services consistently meet specifications, including supplier qualification and performance monitoring.
6. Continuous Improvement
AS9100 isn't a one-time compliance exercise. Organizations are expected to continually evaluate and improve their Quality Management System through internal audits, performance monitoring, corrective actions, and management review.
How the AS9100 Certification Process Works
1. Application
The process begins with an application detailing the organization's business activities, scope of certification, locations, and products or services. This information helps the certification body determine the audit scope and required audit time.
2. Stage 1 Audit
This initial audit reviews the organization's Quality Management System documentation, scope of certification, internal audit records, and overall readiness, confirming that the necessary processes are in place before a full assessment.
3. Stage 2 Audit
The Stage 2 audit is the primary certification assessment, evaluating whether the QMS has been effectively implemented. Auditors review production records, interview employees, and observe processes to confirm documented procedures are consistently followed.
4. Corrective Actions
If the audit identifies nonconformities, the organization investigates root causes and implements corrective actions. Certification isn't granted until these actions have been reviewed and accepted by the certification body.
5. Certification Decision
Once all findings are resolved, the certification body conducts an independent review and, upon approval, issues the AS9100 certificate.
6. Surveillance Audits
Certification doesn't end once the certificate is issued. Periodic surveillance audits verify the QMS continues to operate effectively and remains compliant throughout the certification cycle.
7. Recertification Cycle
AS9100 certificates are typically valid for three years, after which a full recertification audit confirms continued conformity with the standard.
How to Choose the Right AS9100 Certification Body
1. Accreditation Matters
An accredited certification body has been independently assessed for competence, impartiality, and its ability to perform audits according to internationally recognized requirements, helping ensure your certification is recognized and trusted industry-wide.
2. Industry Experience
Auditors familiar with aerospace manufacturing, product safety, risk management, and supply chain controls provide more relevant, objective feedback than generalist auditors unfamiliar with the sector's specific demands.
3. Transparent Certification Process
A certification body should clearly explain each stage of the journey, from application through Stage 1 and Stage 2 audits to certification decisions and surveillance, reducing uncertainty along the way.
4. Audit Expertise
Experienced auditors are better equipped to identify meaningful gaps and provide feedback that strengthens the QMS, rather than generating a checklist of surface-level findings.
5. Ongoing Support Throughout the Certification Cycle
A good certification body remains accessible and responsive during surveillance audits and recertification, supporting the organization over the full three-year certification cycle.
Why Businesses Choose KSQA for AS9100 Certification
K&S Quality Assessments LLC (KSQA) is an accredited certification body offering AS9100 certification services backed by experienced auditors familiar with aerospace quality management systems.
KSQA provides independent third-party certification audits, with on-site and, where appropriate, remote audit options to accommodate different operational needs.
The organization follows a structured certification process from application through surveillance audits, maintaining a strong commitment to impartiality and confidentiality throughout.
Because KSQA operates as a certification body rather than a consulting firm, its role is to objectively assess your Quality Management System against AS9100 requirements and issue certification decisions based on audit evidence.
Frequently Asked Questions (FAQs)
Q1. Is AS9100 certification mandatory?
No. AS9100 certification isn't legally required, but many aerospace, aviation, and defense organizations require suppliers to achieve it before qualifying for contracts or becoming approved vendors.
Q2. How long does AS9100 certification take?
Timelines vary based on organization size, number of locations, scope of certification, and QMS readiness. The certification body can provide a more accurate estimate after reviewing your application.
Q3. How is AS9100 different from ISO 9001?
AS9100 includes all ISO 9001 requirements plus aerospace-specific additions such as product safety, operational risk management, configuration management, counterfeit parts prevention, and enhanced supplier controls.
Q4. How often is AS9100 certification renewed?
AS9100 certification typically follows a three-year cycle, with scheduled surveillance audits in between and a full recertification audit at the end of the cycle to maintain certification.
Conclusion
Understanding what AS9100 certification is and who needs it is an important step toward strengthening your Quality Management System and meeting aerospace industry expectations.
Whether your goal is qualifying for new contracts or building customer confidence, AS9100 offers a globally recognized framework for managing quality and risk, backed by broad international recognition across the aerospace supply chain.
Ready to begin? Contact KSQA to start your AS9100 certification journey with an accredited, experienced partner.
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