ISO 9001 focuses on quality outcomes for customers. ISO 45001 focuses on worker safety outcomes. Both are process-based management systems with identical high-level structure, making them natural integration partners — especially in construction, manufacturing, and field services.
Key differences side by side.
ISO 9001
ISO 45001
Focus area
Quality management
Occupational health & safety
Typical cost (AUD)
$5,500–$105,000
$6,500–$108,000
Typical timeline
3–12 months
3–12 months
Best suited for
Manufacturing, construction, engineering, professional services
Construction, mining, manufacturing, field services
Primary industries
Manufacturing · Construction · Engineering · Professional services · Food production · Healthcare
Construction · Mining · Manufacturing · Field services · Utilities · Transport
Key requirements
Risk-based thinking · Customer focus · Process approach · Documented QMS · Internal audits · Management review
Hazard identification & risk controls · Worker participation · Incident investigation · Legal compliance register · Management of change
Audit & renewal cycle
3-year certification · 2 annual surveillance audits
3-year certification · 2 annual surveillance audits
Integrates well with
ISO 14001, ISO 45001, ISO 27001
ISO 9001, ISO 14001
Choose ISO 9001 if…
Choose ISO 45001 if…
Integration
Very common in construction, manufacturing, and engineering. ISO 9001 + ISO 45001 (plus ISO 14001 as a triplet) forms the basis of most Integrated Management Systems in Australia. Combined audit days are significantly cheaper, and staff training and internal audit processes can be unified.
Shared framework
Annex SL structure is identical across both standards
Combined audits
Certification bodies offer combined surveillance and recertification audits
Lower total cost
Integrated approach saves 20–40% vs certifying each standard separately
ISO 9001 Certification Cost
Price ranges by business size, consultant fees, audit costs
ISO 9001 Certification Timeline
Phase-by-phase breakdown from gap analysis to certificate
ISO 45001 Certification Cost
Price ranges by business size, consultant fees, audit costs
ISO 45001 Certification Timeline
Phase-by-phase breakdown from gap analysis to certificate
FAQ
Answers to the most common questions about choosing between these two standards.
ISO 9001 focuses on quality outcomes for customers. ISO 45001 focuses on worker safety outcomes. Both are process-based management systems with identical high-level structure, making them natural integration partners — especially in construction, manufacturing, and field services.
It depends on what is driving your certification decision. If customers or procurement are asking for quality assurance, ISO 9001 is typically the answer. If you face obligations around occupational health & safety, ISO 45001 is more relevant. Many businesses start with one and add the second 12–24 months later as requirements evolve.
Very common in construction, manufacturing, and engineering. ISO 9001 + ISO 45001 (plus ISO 14001 as a triplet) forms the basis of most Integrated Management Systems in Australia. Combined audit days are significantly cheaper, and staff training and internal audit processes can be unified.
Difficulty depends on your starting point. ISO 9001 costs $5,500–$105,000 and takes 3–12 months. ISO 45001 costs $6,500–$108,000 and takes 3–12 months. An organisation with mature quality management practices will find ISO 9001 straightforward, while one with immature occupational health & safety processes will face more work for ISO 45001.
Individually: $5,500–$105,000 for ISO 9001 and $6,500–$108,000 for ISO 45001. With an integrated approach — shared consultant, combined audit cycles — you can typically reduce the total by 20–35%. Getting itemised quotes from providers experienced with integrated management systems is the best way to understand your combined cost.
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