What an Integrated Management System Looks Like in Practice

An integrated management system (IMS) brings multiple management standards together into one coherent framework. Instead of running separate systems for each certification, organisations manage shared processes, objectives and oversight in a more joined-up way.

For businesses working across quality, environmental, health and safety, energy or information security priorities, this approach can make management clearer, more efficient and easier to maintain.

An IMS combines two or more management system standards into a single structure. Rather than duplicating processes such as internal audits, document control or management reviews, these are aligned and managed centrally.

This is made possible by Annex SL, also known as the High Level Structure (HLS). Annex SL provides a common framework for ISO management system standards, including aligned clause structures, shared terminology and similar core requirements.

Because standards such as ISO 9001, ISO 14001, ISO 45001, ISO 50001 and ISO 27001 follow this structure, they can be integrated more easily into a single system without losing the intent of each standard.

Many organisations begin with one certification and expand over time. As additional standards are introduced, running them separately can create duplication and complexity.

An IMS offers a more streamlined approach. Common benefits include:

• Reduced duplication across processes and documentation
• A single, coordinated audit programme
• Clearer roles and responsibilities
• Improved visibility for leadership
• A more holistic view of risk and performance

For organisations operating across multiple sites or functions, an IMS can also support greater consistency in how standards are applied.

The most common combination is:

• ISO 9001 (Quality Management)
• ISO 14001 (Environmental Management)
• ISO 45001 (Occupational Health & Safety)

However, integration is not limited to these. Additional standards can also be included, such as:

• ISO 50001 (Energy Management)
• ISO 27001 (Information Security Management)

The flexibility of Annex SL means organisations can build an IMS that reflects their operational priorities, rather than forcing standards into a rigid structure.

In practice, an IMS focuses on aligning shared processes while maintaining the specific requirements of each standard.

For example, an organisation may operate:

• One integrated policy framework covering quality, environmental and safety commitments
• A single internal audit programme addressing multiple standards
• One management review process that evaluates overall system performance
• Unified processes for corrective actions and continual improvement

At the same time, standard-specific controls remain in place where needed. For instance, environmental aspects under ISO 14001 or risk assessments under ISO 45001 are still managed in line with their individual requirements.

The result is a system that is both efficient and robust, supporting compliance without unnecessary duplication.

While the benefits are clear, integration needs to be approached carefully.

One common challenge is treating IMS as purely a documentation exercise. Simply merging procedures without considering how the business operates can lead to confusion rather than clarity.

Another is overcomplication. Trying to integrate everything at once can make the system difficult to manage. A more effective approach is to start with shared processes and gradually align the system over time.

Organisations considering an IMS should begin by reviewing their existing or planned certifications and identifying areas of overlap.

Key steps include:

• Mapping requirements across standards
• Identifying shared processes such as audits, document control and management review
• Aligning policies and objectives where appropriate
• Ensuring leadership involvement across all areas

Building an IMS around how the organisation actually operates is critical. The system should support the business, not add unnecessary complexity.

An integrated management system can simplify certification and improve how organisations manage risk, performance and compliance across multiple disciplines.

TÜV UK provides certification services across a wide range of management system standards, supporting organisations in achieving and maintaining certification in a structured and efficient way.

Get in touch with TÜV UK to discuss certification for ISO 9001, ISO 14001, ISO 45001, ISO 50001, ISO 27001 and integrated management systems.