Combined or integrated auditing: what fits your organization best?

Organizations with multiple certificates often prefer to be audited against several standards at the same time. This allows them to streamline their certification process, making it smarter, faster, and more efficient, without compromising on quality or reliability. The two most common ways to achieve this are combined audits and integrated audits. Below, we explain the differences between these two approaches.

Combined audits: one audit moment for multiple standards

In a combined audit, audits for the different standards are conducted separately but coordinated wherever possible. This can lead to time savings, especially when processes overlap in clauses 4 through 10 of ISO’s so-called Harmonized Structure (HS). However, the total audit time remains based on the individual standards, as prescribed in accreditation frameworks such as ISO/IEC 17021.

Examples from a combined audit process:

  • Opening and closing meetings: One joint session can be held in which the management team discusses the fundamentals of multiple management systems.
  • Management discussion: Topics such as risk management and management review often apply to multiple standards and can be addressed in a single conversation.
  • Audit team: A dedicated auditor is responsible for each standard. The certificate holder coordinates the shared sessions where multiple standards are assessed simultaneously.
  • Site visits: Auditors aim to visit sites concurrently where feasible. During the visit, they may split up if deeper assessment is required for certain standards. This is agreed upon in advance.

Integrated audits: one system, multiple standards

An integrated audit is possible when several standards share significant overlap and are embedded within a single integrated management system. Many standards follow the same basic structure (clauses 4 through 10 of ISO’s Harmonized Structure), allowing them to be covered in one audit. If an auditor holds the right qualifications, experience and expertise, they can carry out a fully integrated audit. If not, Kiwa will assemble a suitable audit team. Thanks to Kiwa’s wide range of qualified auditors, a tailored solution is nearly always possible.

Benefits of integrated audits:

  • Opening and closing meetings: All relevant standards are addressed in one session by the auditor(s).
  • Management discussion: The audit takes a holistic view of the integrated system, covering all applicable standards.
  • Audit team: There is one lead auditor, supported by additional auditors if needed for specific topics or standards. The lead auditor may also perform the audit independently.
  • Single audit report: The report is fully integrated, with clear findings specified for each relevant standard.
  • Efficiency and depth: The overlap allows for greater focus on key processes, which are examined in more depth.
  • Time savings: Depending on process complexity, a time reduction of up to 20% may be applied.

Would you like to find out which audit approach best suits your organization? Contact your Kiwa representative.