What is occupational risk prevention?
The Spanish legal definition, set out in Article 4 of Law 31/1995, emphasizes anticipation: it encompasses measures already adopted as well as those planned for all phases of business activity. It is not limited to reacting after an accident or providing protective equipment. It must influence equipment selection, workplace design, task organization, purchasing, maintenance, and process changes.
Prevention aims to eliminate avoidable risks and reduce the remaining ones to a level compatible with effective protection. It combines technical knowledge, organization, and participation. While the responsibility for protection lies with the company, managers, employees, representatives, and prevention resources all play a role within their respective functions. The cost of these measures can never be borne by the workers.
Differences with related concepts
- Occupational safety and health (OSH) is the broad field that seeks to prevent injuries and ill health and promote safe and healthy working conditions. In Spain, “PRL” is the common term used to refer to the organized set of activities and measures aimed at achieving this goal.
- Occupational risk. This is the possibility that a person may suffer harm as a result of their work . Occupational risk prevention (PRL) addresses this risk before it materializes.
- Risk assessment. It is one of the essential tools of occupational risk prevention management : it estimates the risks that could not be avoided and allows for prioritization. It is not equivalent to all prevention measures.
- Preventive management. Integrates occupational risk prevention into the company’s general system through responsibilities, procedures, resources and monitoring.
- Corrective measures. These respond to a detected deviation, incident, or damage. Prevention is broader: it also includes measures taken before the problem arises.
Principles of preventive action
Article 15 of Law 31/1995 establishes a sequence to guide decision-making. First, risks are avoided; those that cannot be avoided are assessed. Then, they are addressed at their source, work is adapted to the individual, and technological advancements are taken into account. The company must replace hazardous elements with those that pose little or no danger, plan prevention coherently, and prioritize collective protection over individual protection. Finally, it must provide appropriate instructions.
These principles preclude choosing measures based solely on convenience. For example, in the case of hazardous dust, a mask should not be the first option if it is feasible to eliminate the product, replace it, or capture the contaminant at the point of emission. Personal protective equipment (PPE) should be considered as a last resort or supplement. Planning must also take into account professional capabilities, potential non-reckless distractions, and the exposure of particularly sensitive individuals.
How it is applied in an organization
- Define the policy and organization. The prevention plan assigns roles, responsibilities, resources, and channels for participation, and integrates occupational health and safety at all levels.
- Identify and assess. Positions, tasks, facilities, equipment, and exposed groups are analyzed. The assessment should be updated when conditions change or damage indicates that the measures may be insufficient.
- Plan the measures. Each action needs priority, a responsible party, a deadline, and resources. The most significant risks should be addressed first, and regular monitoring should be maintained.
- Inform, consult, and train. People need to know the risks of their job, the measures to take, and how to act in emergencies; training must be sufficient, practical, and linked to the actual work.
- Prepare for emergencies and monitor health. First aid, firefighting, and evacuation are organized, and risk-related health surveillance is offered, respecting confidentiality and proportionality.
- Investigate and improve. Accidents, incidents, monitoring results, and deficiencies trigger a root cause analysis. The effectiveness of the implemented actions is then verified.
Participation and coordination
Effective prevention begins with actual work practices. Law 31/1995 recognizes the rights to information, consultation, and participation, which are also channeled through worker safety representatives and health and safety committees where appropriate. Consultation must take place before any decisions that could substantially affect safety and health, such as changes to equipment, organization, or technologies.
When several companies share a facility, prevention requires cooperation, information sharing, and appropriate coordination. Each company maintains its responsibilities and must prevent its activities from creating hazards for others. Coordination must translate information into verifiable instructions, controls, and decisions.
Practical example
A company installs a new packaging line. Before putting it into service, it reviews the design, eliminates accessible entrapment points, and selects integrated guards. It assesses residual risks from commissioning, cleaning, and maintenance; defines lockout/tagout procedures; trains operators and technical personnel; and only marks hazards that could not be resolved through design or collective protection.
During the first few weeks, the company records incidents and consults with users of the line. An unexpected stoppage reveals that a blockage clearance operation requires an awkward posture. The company modifies the access and updates the assessment. This cycle demonstrates that occupational health and safety (OHS) is not a static document: it accompanies the purchase, implementation, use, maintenance, and improvement of the equipment.
Regulatory framework
In Spain, Law 31/1995 recognizes the right to effective protection and establishes obligations, principles, and rights of participation. Article 16 places the prevention plan, risk assessment , and preventive planning at the heart of management. Royal Decree 39/1997 develops the organization of preventive resources, the assessment procedure, planning, and the types of prevention services . Specific regulations complete this framework for workplaces, equipment, chemical agents, noise, ergonomics, and other risks.
In the European Union, Directive 89/391/EEC provides the general framework and establishes responsibilities for assessment, prevention, information, training, and consultation, which are further developed by specific directives. At the international level, ILO Convention 155 promotes a coherent occupational safety and health policy aimed at preventing work-related accidents and injuries. These instruments set minimum standards and principles; each organization must adapt them to its specific risks.
