United States Accreditation Services
Accreditation Body

Independent accreditation that strengthens trust.

USAS provides impartial accreditation to certification bodies, inspection bodies, laboratories, and validation & verification bodies in accordance with internationally recognized ISO/IEC standards.

Enquire Accreditation Services
Systematic & rigorous approach

Structured assessment. Clear decisions. Ongoing confidence.

From application review to assessment, witnessing (where applicable), and independent decision making — USAS applies a consistent, evidence-based methodology.

Accreditation Process Impartiality
Verification

Verify accreditation claims with confidence.

Use our public notice and verification guidance to check authenticity and avoid misleading accreditation claims.

Public Notice Contact USAS

Globally aligned accreditation body

United States Accreditation Services (USAS) is an independent and transparent accreditation body. We evaluate conformity assessment bodies against ISO/IEC standards to strengthen confidence in certifications, inspections, test and calibration results, and validation/verification statements.

Official website: usas.biz (legacy domain: usacc.com)

Our Contacts

Address: 548 Market St. Suite 46249 San Francisco, CA 94104, USA
Phone: +1 (672) 202-4064
Contact us for more information

Accreditation Services

Accreditation schemes supported by USAS.

ISO/IEC 17021

Management System Certification Bodies

  • Audit & certification program control
  • Competence management
  • Decision rules and impartiality
ISO/IEC 17020

Inspection Bodies

  • Type A/B/C independence
  • Methods and reporting
  • Competence & governance
ISO/IEC 17025

Testing & Calibration Laboratories

  • Valid methods & traceability
  • Uncertainty & equipment control
  • Reliable reporting
ISO/IEC 17024

Personnel Certification Bodies

  • Scheme governance
  • Exam integrity
  • Impartiality controls
ISO/IEC 17065

Product / Process / Service Certification

  • Program management
  • Evaluation & decision
  • Certification controls
ISO/IEC 17029

Validation & Verification Bodies

  • V&V governance and competence
  • Consistent statements
  • Applicable scheme rules
View all services

Accreditation Process

1ApplicationScope & documentation review
2AssessmentDesk + on-site/remote
3Corrective ActionsVerification of closure
4DecisionIndependent accreditation decision
Read full process

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