Question 1

What is the difference between ISO 45001 and the older OHSAS 18001?

Accepted Answer

OHSAS 18001 was a British standard for occupational health and safety management that was widely adopted globally. ISO 45001:2018 replaced it as the first true international ISO standard for OH&S management systems. Key differences include: ISO 45001 uses the High-Level Structure (Annex SL) shared with ISO 9001 and ISO 14001, making integration easier; it places stronger emphasis on leadership commitment and worker participation; it requires the organisation to consider the views of interested parties beyond just employees; and it focuses on eliminating hazards and reducing OH&S risks proactively. OHSAS 18001 certificates are no longer valid — the transition deadline was March 2021.

Question 2

Is ISO 45001 mandatory for factories in India?

Accepted Answer

ISO 45001 is a voluntary management system standard, not a statutory requirement under Indian law. Statutory occupational safety obligations for factories are governed by the Factories Act 1948, the Occupational Safety, Health and Working Conditions Code 2020, and state-specific rules. However, ISO 45001 certification is increasingly required by large industrial buyers, EPCs, and OEMs as a supplier qualification criterion — particularly in the oil & gas, power, chemical, automotive, and construction sectors. It also provides the documented safety system evidence that helps organisations manage liability in the event of workplace accidents.

Question 3

What is a Hazard Identification and Risk Assessment (HIRA) under ISO 45001?

Accepted Answer

Hazard Identification and Risk Assessment (HIRA) is the process by which an organisation systematically identifies all hazards present in its workplaces and activities — physical, chemical, biological, ergonomic, and psychosocial — and then evaluates the risk each hazard presents based on likelihood and severity. ISO 45001 requires this process to be ongoing (not just a one-time exercise), to involve workers at all levels, and to drive the selection of controls. Controls are applied in order of the hierarchy: elimination, substitution, engineering controls, administrative controls, and personal protective equipment (PPE) — in that priority order.

Question 4

How does ISO 45001 handle worker participation?

Accepted Answer

ISO 45001 places significantly more emphasis on worker participation than OHSAS 18001 did. The standard requires organisations to establish processes for workers at all levels — not just management — to participate in the development and review of OH&S policy and objectives, the HIRA process, identification of legal requirements, planning of controls and emergency procedures, and incident investigation. Workers must be able to report hazards and near-misses without fear of reprisal, and the organisation must have mechanisms to respond to worker concerns. This requirement often drives the development of safety committees, anonymous reporting systems, and toolbox talk programmes.

Question 5

Can ISO 45001 be integrated with ISO 9001 and ISO 14001?

Accepted Answer

Yes — this is one of the most common implementation approaches for medium and large organisations. ISO 45001 shares the same High-Level Structure (Annex SL) as ISO 9001 (quality) and ISO 14001 (environment), which means common elements including context, leadership, planning, support, operation, performance evaluation, and improvement can be managed through a single Integrated Management System (IMS). An integrated approach reduces documentation duplication, simplifies internal audits, and enables combined certification audits — where a single audit team from the certification body assesses all three standards simultaneously, reducing cost and business disruption.

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