Pillar Guide

What Is Safety?

Safety is the state of being free from unacceptable risk of harm. This guide explains what safety means in the workplace, how organizations manage occupational health and safety, and the frameworks and standards that protect workers worldwide.

Defining Safety

"Safety: state of being free from unacceptable risk."
ISO/IEC Guide 51:2014, Clause 3.14

Safety is not the complete absence of risk, which is impossible in any productive activity. Rather, it is the condition where risks have been reduced to levels that are acceptable given the context, the state of technology, and the expectations of society. This distinction is critical: safety management is fundamentally about understanding, assessing, and controlling risk, not eliminating it entirely.

In the workplace, safety encompasses everything that protects workers from harm: physical safeguards on machinery, proper handling procedures for hazardous materials, ergonomic workstation design, emergency preparedness plans, and the organizational culture that prioritizes human wellbeing over production pressure.

The modern discipline of occupational health and safety (OHS) emerged from the industrial revolution, when factory conditions caused widespread injury and disease. Today, OHS is governed by national legislation (such as OSHA in the United States), international standards (ISO 45001), and professional bodies (NEBOSH, NIOSH, IOSH) that collectively establish the minimum expectations for how organizations protect their workers.

Core Elements of Safety Management

Whether governed by OSHA regulations or ISO 45001, effective safety management systems share these fundamental elements:

Hazard Identification

Systematically identifying all sources of potential harm in the workplace, including physical, chemical, biological, ergonomic, and psychosocial hazards.

Risk Assessment

Evaluating the likelihood and severity of harm from each hazard, then prioritizing actions based on the level of risk to workers.

Controls Implementation

Applying the hierarchy of controls (elimination, substitution, engineering, administrative, PPE) to reduce risks to acceptable levels.

Worker Participation

Actively involving workers in safety decisions, hazard reporting, and improvement initiatives. ISO 45001 requires meaningful consultation and participation.

Incident Investigation

Analyzing accidents, near-misses, and unsafe conditions to identify root causes and prevent recurrence through corrective actions.

Continual Improvement

Using data from audits, inspections, incident reports, and worker feedback to continuously strengthen the safety management system.

The Hierarchy of Controls

The hierarchy of controls is the most important concept in safety management. It ranks control measures from most effective (eliminating the hazard entirely) to least effective (protecting the individual worker with PPE). Always work from the top down.

Elimination

Most effective

Physically remove the hazard from the workplace entirely.

Substitution

Highly effective

Replace the hazard with something less dangerous.

Engineering Controls

Effective

Isolate people from the hazard through physical barriers, ventilation, or redesign.

Administrative Controls

Moderately effective

Change the way people work through training, procedures, signage, and scheduling.

PPE

Least effective

Protect the worker with personal protective equipment (last resort).

Key Safety Frameworks and Standards

ISO 45001:2018

International standard for OH&S management systems. Provides the globally recognized framework for systematic safety management.

OSHA (USA)

Federal regulations and enforcement for workplace safety. Sets permissible exposure limits, requires hazard communication, and conducts inspections.

NEBOSH (UK)

National Examination Board in Occupational Safety and Health. Provides globally recognized qualifications for safety professionals.

NIOSH (USA)

National Institute for Occupational Safety and Health. Conducts research and makes recommendations for preventing work-related injuries and illnesses.

Frequently Asked Questions About Safety

What is safety?

Safety is the state of being free from unacceptable risk of harm. In the workplace context, safety encompasses all policies, procedures, and practices designed to protect workers from physical injury, occupational illness, and psychological harm. It is both a condition (the absence of danger) and a discipline (the systematic management of risk).

What is workplace safety?

Workplace safety refers to the policies, procedures, and conditions that protect employees from accidents, injuries, and health hazards while performing their jobs. It includes physical safety (machinery guards, PPE, ergonomics), chemical safety (hazardous materials handling), biological safety, and psychological safety (freedom from harassment and excessive stress).

What is occupational health and safety (OHS)?

Occupational health and safety is the multidisciplinary field concerned with the safety, health, and welfare of people at work. It aims to foster a safe and healthy work environment by identifying workplace hazards, assessing risks, implementing controls, and monitoring effectiveness. OHS is governed by regulations (like OSHA in the US) and international standards (like ISO 45001).

What is ISO 45001?

ISO 45001:2018 is the international standard for occupational health and safety management systems. It provides a framework for organizations to proactively improve worker safety, reduce workplace risks, and create better, safer working conditions. It replaced OHSAS 18001 and follows the same High-Level Structure as ISO 9001 and ISO 14001, enabling integrated management systems.

What is the difference between safety and health in the workplace?

Safety focuses on preventing acute injuries from accidents and incidents (falls, cuts, burns, electrical shock). Health focuses on preventing chronic illnesses from prolonged exposure to workplace hazards (noise-induced hearing loss, respiratory diseases, musculoskeletal disorders, mental health conditions). Both are essential components of a comprehensive OHS program.

What is a safety management system?

A safety management system (SMS) is a structured framework of policies, procedures, and processes that organizations use to systematically manage safety risks. It includes hazard identification, risk assessment, incident investigation, emergency preparedness, worker participation, and continual improvement. ISO 45001 provides the internationally recognized model for an SMS.

What is the hierarchy of controls in safety?

The hierarchy of controls is the systematic approach to reducing workplace hazards, ranked from most to least effective: (1) Elimination - remove the hazard entirely, (2) Substitution - replace with something less hazardous, (3) Engineering controls - isolate people from the hazard, (4) Administrative controls - change the way people work, (5) PPE - protect the worker with personal equipment. Always start from the top.

What is OSHA and what does it do?

OSHA (Occupational Safety and Health Administration) is the US federal agency responsible for ensuring safe and healthful working conditions. Established in 1970, OSHA sets and enforces workplace safety standards, provides training and education, and conducts inspections. Employers must comply with OSHA standards or face citations and penalties.

What is a risk assessment in safety?

A risk assessment is the systematic process of identifying hazards in the workplace, evaluating the likelihood and severity of harm they could cause, and determining appropriate control measures. It involves five steps: identify hazards, determine who might be harmed, evaluate risks and decide on precautions, record findings and implement them, and review and update regularly.

What is a safety culture?

Safety culture is the collection of beliefs, perceptions, attitudes, and values that employees share about safety in their organization. A positive safety culture means safety is genuinely valued (not just documented), workers feel empowered to report hazards without fear, leadership visibly commits to safety, and continuous improvement is the norm rather than the exception.

Ready to Build a Safer Workplace?

Explore our free ISO 45001 clause-by-clause guide, practice hazard identification in the interactive trainer, or browse expert answers to real-world safety questions.

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