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Compare ISO 9001 to ISO 14001 and OHSAS 18001

OHSAS 18001 Occupational Health & Safety Management System was intentionally developed to be compatible with the ISO 9001 (Quality) and ISO 14001 (Environmental) management systems standards for easier integration of quality, environmental and occupational health & safety management systems by organizations. OHSAS 18001 outlines requirements for an occupational health and safety (OH&S) management system, to enable an organization to control its OH&S risks and improve its performance. Like ISO 14001, it does NOT state performance criteria or dictate the design of a management system.

Integrating an IMS can be more effective and efficient than maintaining individual systems. Whichever method you choose, here is some information:

Integration Options

There are three primary options the organization must choose between:

  1. Maintaining two separate systems (9001 and 14001/18001)
  2. Partially integrated systems
  3. Fully integrated systems

We offer six versions of the Documentation Package to simplify the process for organizations that already have other management systems (ISO 9001, ISO 14001, etc.) in place or want to deal with more than one standard at a time. We also offer a completely integrated manual.

Learn more about which version is best for you.

Compare ISO 9001-14001-18001

There are seven common elements in ISO 9001, ISO 14001 and OHSAS 18001:

  1. Structure and responsibility
  2. Training, awareness and competence
  3. Document control
  4. Records
  5. Corrective and preventive action
  6. Internal audits
  7. Management review

An IMS takes advantage of these common elements and implementation of 14001 and 18001 is simplified into an existing ISO 9001 certified organization.

ISO 14000 & 18000 are very similar to each other but differ from ISO 9001:

  • Structure
    • ISO 14000 and 18000 contains four clauses with six elements
    • ISO 9001 contains five clauses with twenty-three elements
  • Despite a common systems approach, they differ in content.
  • In addition, ISO 14000 contains the following unique requirements:
    • Environmental Aspects and Impacts (4.3.1)
    • Legal and Other Requirements (4.3.2)
    • Environmental Programs (4.3.4)
    • Communication (4.4.3)
    • Emergency Preparedness and Response (4.4.7)

More Comparisons between ISO 9001, ISO 14001 and OHSAS 18001

ISO 9001 is a Quality Management System (QMS) which gives organizations a systematic approach for meeting customer objectives.

ISO 14001 is an Environmental Management System (EMS) which provides a system for measuring and improving an organization's environmental impact.

OHSAS 18001 is an Occupational Health and Safety Management System (OHSMS) which provides a system for measuring and improving an organization's health and safety impact.

One important difference between OHSAS 18001, ISO 14001 and other international standards is that an organization can self-declare their compliance. Learn More...

Because ISO 14001 and OHSAS 18001 are very similar, the management systems can be effectively combined, integrated and a self-declaration made (a cost savings option).

To train your personnel and help your project along, you may want to consider our resources:

ISO Brochure on Integrated Management Systems

ISO-9001-and-14001ISO has published a combined book and CD giving organizations advice on how to make integrated use of management system standards.

Comparison table of ISO 9001-14001-OHSAS 18001

9001-14001-18001 Download a FREE more detailed document which compares ISO 9001 to 14001 and 18001

Sec. ISO 9001 Sec. ISO 14001 Sec. OHSAS 18001
0 Introduction   Introduction   Introduction
0.1 General        
0.2 Process approach        
0.3 Relationship with ISO 9004        
0.4 Compatibility with other management systems        
1 Scope 1 Scope 1 Scope
1.1 General        
1.2 Application        
2 Normative references 2 Normative references 2 Normative references
3 Terms and definitions 3 Terms and definitions 3 Terms and definitions
4 Quality management system 4 Environmental management system requirements 4 OH&S management system elements
4.1 General requirements 4.1 General requirements 4.1 General requirements
5.5 Responsibility, authority and communication        
5.5.1 Responsibility and authority 4.4.1 Resources, roles, responsibility and authority 4.4.1 Resources, roles, responsibility and authority
5.1 Management commitment 4.2 Environmental policy 4.2 OH&S policy
5.3 Quality policy        
5.4 Planning 4.3 Planning 4.3 Planning
5.2 Customer focus 4.3.1 Environmental aspects 4.3.1 Hazard identification, risk assessment and determining controls
7.2.1 Determination of requirements related to the product        
7.2.2 Review of requirements related to the product        
5.2 Customer focus 4.3.2 Legal and other requirements 4.3.2 Legal and other requirements
7.2.1 Determination of requirements related to the product        
5.4.1 Quality objectives 4.3.3 Objectives, targets and programme(s) 4.3.3 Objectives and programmer(s)
5.4.2 Quality management systems planning        
7 Product realization 4.4 Implementation and operation 4.4 Implementation and operation
8 Measurement , analysis and improvement 4.5 Checking 4.5 Checking
8.2.2 Internal audit 4.5.5 Internal audit 4.5.5 Internal audit
8.5.2
8.5.3
Corrective action
Preventive Action
4.5.3 Nonconformity, corrective and preventive action 4.5.3.2 Nonconformity, corrective and preventive action