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Health & Safety 17 April 2026 10 min read ISO Xpert TeamLast updated 30 June 2025

Occupational Health & Safety: ISO 45001, NEBOSH & IOSH Complete Guide

Occupational Health & Safety (OH&S) protects workers from injuries, ill-health and fatalities. This guide covers the key standard (ISO 45001) and the leading professional qualifications (NEBOSH and IOSH).

ISO 45001:2018

The international standard for OH&S Management Systems, replacing OHSAS 18001. It follows Annex SL, integrates with ISO 9001/14001, and emphasises worker consultation, participation and risk-based thinking (HIRA).

NEBOSH

The National Examination Board in Occupational Safety and Health offers globally recognised qualifications - the NEBOSH International General Certificate (IG1 & IG2) is the most popular entry-level HSE qualification worldwide.

IOSH

IOSH Managing Safely is a 4-day course for managers and supervisors who need practical safety knowledge. IOSH Working Safely is for frontline workers.

How They Fit Together

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