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United System Accreditation Bureau

Confidence built onindependent accreditation.

USAB evaluates the competence, impartiality, and consistency of conformity assessment bodies, helping organizations, regulators, and markets rely on results with confidence.

Independent

Governance

Evidence-led

Assessments

International

Programmes

Responsive

Client support

Accreditation assessors reviewing technical evidence and performance data

Assessment in practice

Decisions grounded in evidence, technical expertise, and impartial review.

Certification bodies
Inspection bodies
Testing & calibration labs
Validation & verification
Our Commitment

Independent accreditation for global confidence

Building trust between conformity assessment bodies, industry, regulators, businesses, and consumers.

The United System Accreditation Bureau promotes confidence in conformity assessment through impartial governance, transparent processes, and technically competent assessment practices. Every review is structured to evaluate real capability, not simply documented intent.

Qualified assessors and technical experts evaluate organizational capability, operational effectiveness, and conformity with applicable requirements. Accreditation decisions are based on objective evidence and protected from undue influence or conflicts of interest.

How we operate

09

Our commitments

Nine principles guide every assessment, technical review, and accreditation decision.

  • Independent Governance
  • Impartial Accreditation
  • Technical Competence
  • Transparent Processes
  • Ethical Decision-Making
  • Risk-Based Assessment
  • Confidentiality Protection
  • Continual Improvement
  • Professional Client Support
Accreditation professionals collaborating during a technical review meeting

Expertise in practice

Independent expertise. Shared confidence.

About USAB

Who we are

The United System Accreditation Bureau (USAB) is an independent accreditation organization focused on promoting trust and confidence in conformity assessment. Our activities are centered on evaluating the competence of organizations that provide certification, inspection, testing, calibration, validation, verification, and related conformity assessment services.

Our work is founded on several key principles.

Our foundation

Principles we uphold

These principles shape every assessment, technical review, and accreditation decision.

01
Independence
Accreditation decisions are made free from external influence.
02
Impartiality
Assessments are objective and evidence-based.
03
Competence
Qualified assessors and technical experts support every accreditation programme.
04
Integrity
Ethical conduct underpins all accreditation activities.
05
Transparency
Processes, policies, and criteria are clearly documented.
06
Confidentiality
Sensitive information is protected throughout the accreditation lifecycle.
07
Continual Improvement
Our management system is regularly reviewed to enhance effectiveness and efficiency.

These principles help ensure that USAB provides accreditation services that are credible, consistent, and professionally managed.

01 · Confidence

Why Accreditation Matters

Accreditation provides confidence that conformity assessment bodies operate competently, consistently, and in accordance with defined accreditation requirements. It supports trust in certification, inspection, testing, and verification activities, helping organizations demonstrate their capability to customers, regulators, and other interested parties. For conformity assessment bodies, accreditation offers a structured framework for continual improvement, technical development, and operational excellence. It encourages organizations to strengthen governance, improve risk management, enhance service quality, and maintain effective management systems. For businesses and consumers, accreditation contributes to greater confidence in certified products, services, systems, and professional competence. It supports informed decision-making and helps foster trust across supply chains, markets, and industries.

02 · Process

Our Approach

USAB adopts a structured and transparent approach to accreditation that emphasizes fairness, consistency, and technical competence. Every accreditation application is managed through documented procedures that include application review, assessment planning, document evaluation, on-site or remote assessments (where applicable), technical review, accreditation decision-making, and ongoing surveillance. Our assessment methodology is risk-based and evidence-driven, ensuring that accreditation decisions reflect the actual competence and capability of the applicant organization. Qualified assessors and technical experts are assigned based on the scope of accreditation, helping ensure that each evaluation is relevant, objective, and technically robust. We also place significant emphasis on communication and collaboration. Throughout the accreditation process, applicants receive clear guidance on requirements, assessment findings, and opportunities for improvement, enabling them to strengthen their management systems and conformity assessment activities.

Standards We Support

Internationally recognized standards within our scope

Explore management system and compliance standards supported through USAB accreditation programmes.

Quality Management Systems sectorUSAB scope

ISO 9001:2015

Quality Management Systems

Specifies requirements for a quality management system where an organization needs to demonstrate its ability to consistently provide products and services that meet customer and applicable statutory and regulatory requirements, and aims to enhance customer satisfaction through the effective application of the system. All requirements of ISO 9001:2015 are generic and intended to be applicable to any organization, regardless of its type, size, or the products and services it provides.

Environmental Management Systems sectorUSAB scope

ISO 14001:2015

Environmental Management Systems

Specifies requirements for an environmental management system enabling an organization to develop and implement a policy and objectives that take into account legal requirements and information about significant environmental aspects. It applies to the environmental aspects an organization identifies as those it can control and influence, and is applicable to any organization wishing to establish, implement, maintain and improve an environmental management system.

Occupational Health & Safety sectorUSAB scope

ISO 45001

Occupational Health & Safety

An internationally recognized standard for Occupational Health & Safety Management Systems (OHSMS). It helps organizations create a safe and healthy workplace by reducing risks, preventing work-related injuries and improving overall safety performance. USAB provides independent accreditation support to certification bodies offering ISO 45001 certification.

Social Accountability sectorUSAB scope

SA8000

Social Accountability

A globally recognized standard focused on social accountability and ethical workplace practices. It helps organizations ensure fair treatment of workers, safe working conditions, and compliance with human rights and labour laws, based on international norms such as the Universal Declaration of Human Rights and ILO conventions.

Good Manufacturing Practices sectorUSAB scope

GMP

Good Manufacturing Practices

A system ensuring products are consistently produced and controlled according to quality standards, designed to minimize risks in production that cannot be eliminated through final product testing. GMP is widely applied in pharmaceuticals, food, cosmetics and medical devices.

Anti-Bribery Management sectorUSAB scope

ISO 37001

Anti-Bribery Management

An internationally recognized standard for Anti-Bribery Management Systems (ABMS). It helps organizations prevent, detect and respond to bribery and corruption risks while promoting a culture of transparency and ethical business practice.

01

Global reach

A network of excellence across borders

USAB has expanded its presence across multiple countries, empowering Certification Bodies and organizations worldwide to achieve internationally recognized standards of quality and compliance.

02

Sector coverage

Programmes for diverse industries

Manufacturing, healthcare, construction, engineering, food safety, information technology, environmental management, energy, education, transportation, logistics, government and pharmaceuticals.

03

Continual improvement

Processes that evolve with industry

USAB continually reviews and enhances its accreditation processes to reflect evolving industry expectations, technological advancements, and internationally accepted conformity assessment practices.

Take the next step

Begin your accreditation journey with USAB

Whether your organization is seeking initial accreditation, extending its scope, or maintaining accredited status, our team provides professional, impartial, and transparent accreditation services.