How We Are Governed

PQS Pre-Qualification-Scheme is a UKAS Inspection Body, SSIP Registered Member, and Crown Commercial Services G-Cloud-approved provider.

PQS is a leading SSIP Registered Member accredited by UKAS Inspection Body under ISO17020:2012 and subject to regular independent audits by UKAS (United Kingdom Accreditation Service). UKAS as the national accreditation body for the UK, is governmentappointed to assess organisations providing certification, testing, inspection, and calibration.

SSIP (Safety Schemes in Procurement) is supported by HSE (Health & Safety Executive), acting as an umbrella organisation to facilitate and maximise mutual or cross-recognition of health and safety assessments between SSIP member schemes, where practicable to do so.

PQS Pre-Qualification-Scheme is a member of Safety Schemes in Procurement (SSIP). As an SSIP member, PQS is fully committed to the vision of driving unnecessary cost and confusion out of supplier health and safety assessment, and SSIP’s core philosophy is to enable effective cross-recognition between existing schemes. Visit

PQS, Prequalification Scheme adopts internal control principles based on International Standard ISO/IEC 17020 Conformity Assessment, requirements for bodies performing the inspection and a standard used by UKAS to approve inspection bodies. At assessment level, competent personnel are assigned (SSIP member assessor requirements adopted). As part of these internal controls, PQS management team safeguards impartiality of activities with responsibilities including:

  • assisting in developing policies relating to impartiality of activities
  • counteracting tendencies to allow commercial/other considerations
  • preventing consistent objective provision of assessment activities
  • advising on matters (confidence in assessment), including openness/public perception
  • conducting a review annually on impartiality of assessments/decision-making

Quality Management is assured through UKAS Approval to ISO17020. Principles adopted throughout at PQS include:

• impartiality
• competence
• responsibility
• openness
• confidentiality
• responsiveness to complaints

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