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CRSP key terms

CRSP · Get comfortable with the vocabulary.

Hazard

Any source, situation, or act with the potential to cause harm, injury, ill health, or damage to property and the environment. It exists independently of whether anyone is currently exposed.

Related: Risk, Hazard Identification
Risk

The combination of the likelihood that a hazardous event occurs and the severity of harm it would cause. Risk is assessed for a defined activity, population, and timeframe.

Related: Hazard, Risk Assessment, Residual Risk
Hazard Identification

The systematic process of recognizing and documenting sources of potential harm before controls are selected. It draws on inspections, incident data, worker reports, task analysis, and legislation.

Related: Hazard, Risk Assessment, Job Safety Analysis
Risk Assessment

A structured evaluation that estimates likelihood and severity for identified hazards, then ranks them to prioritize controls. It considers exposure, existing controls, and the affected population.

Related: Risk, Hierarchy of Controls, Residual Risk
Risk Matrix

A grid that combines likelihood and consequence ratings to produce a risk score or band. It supports consistent prioritization but depends on clearly defined rating criteria.

Related: Risk Assessment, Residual Risk
Hierarchy of Controls

A ranked order of control measures, from elimination and substitution through engineering, administrative, and PPE. Higher-order controls are more reliable because they depend less on human behavior.

Related: Elimination, Engineering Control, Personal Protective Equipment
Elimination

Removing a hazard entirely from the workplace or task, such as discontinuing a hazardous chemical or process. It is the most effective control because no residual exposure remains.

Related: Hierarchy of Controls, Substitution
Substitution

Replacing a hazardous material, equipment, or process with a less hazardous alternative. Effectiveness depends on verifying that the substitute does not introduce new risks.

Related: Hierarchy of Controls, Elimination
Engineering Control

A physical change to the workplace or equipment that reduces exposure at the source, such as ventilation, guarding, or noise enclosures. It generally does not rely on worker behavior.

Related: Hierarchy of Controls, Administrative Control
Administrative Control

A work practice, procedure, training, or scheduling change that reduces exposure, such as job rotation or permit systems. These controls depend on consistent human compliance to be effective.

Related: Engineering Control, Personal Protective Equipment
Personal Protective Equipment

Equipment worn or held by a worker to reduce exposure, such as gloves, respirators, or hearing protection. It is the last line of defense and requires fitting, training, and maintenance.

Related: Hierarchy of Controls, Administrative Control
Residual Risk

The level of risk remaining after controls have been implemented. It must be evaluated against acceptance criteria and communicated to affected workers.

Related: Risk Assessment, Hierarchy of Controls
Job Safety Analysis

A technique that breaks a task into sequential steps, identifies hazards at each step, and specifies controls. It is typically developed with the workers who perform the task.

Related: Hazard Identification, Safe Work Procedure
Safe Work Procedure

A written, task-specific description of the safe method, required controls, and precautions for performing work. It must be accessible, current, and communicated to workers.

Related: Job Safety Analysis, Administrative Control
Hazard Control

The selection, implementation, and monitoring of measures that reduce risk to an acceptable level. Control selection follows the hierarchy and is verified for effectiveness.

Related: Hierarchy of Controls, Residual Risk
Legal Compliance

Meeting the duties and prohibitions imposed by occupational health and safety legislation, regulations, and applicable standards. It is a minimum obligation, not a substitute for risk reduction.

Related: Due Diligence, Internal Responsibility System
Due Diligence

The ongoing, documented effort a duty holder makes to anticipate, prevent, and address hazards and legal breaches. Evidence includes policies, training records, inspections, and corrective actions.

Related: Legal Compliance, Internal Responsibility System
Internal Responsibility System

The principle that everyone in a workplace shares responsibility for health and safety, with clear roles, authority, and accountability defined at each level of the organization.

Related: Due Diligence, Joint Health and Safety Committee
Joint Health and Safety Committee

A workplace committee with worker and employer representatives that monitors health and safety conditions, reviews incidents, and makes recommendations. Its composition and powers are set by legislation.

Related: Internal Responsibility System, Worker Representative
Worker Representative

A worker selected to represent colleagues on health and safety matters where a full committee is not required. The role typically includes inspections, hazard reporting, and consultation with the employer.

Related: Joint Health and Safety Committee, Internal Responsibility System
Right to Refuse Unsafe Work

A legislated worker right to decline work believed to present an undue hazard, following a defined process of reporting, investigation, and resolution. Retaliation for exercising it is prohibited.

Related: Legal Compliance, Worker Representative
Standard

A published technical or management specification developed by a recognized body. Adoption may be voluntary, incorporated by reference into regulation, or required by contract.

Related: Legal Compliance, Management System
Safety Management System

A structured set of policies, objectives, processes, and resources used to manage health and safety performance. Effective systems include planning, implementation, evaluation, and continual improvement.

Related: Standard, Management Review, Corrective Action
Policy Statement

A formal declaration by senior leadership of the organization's health and safety commitments, principles, and objectives. It authorizes the management system and is communicated to all workers.

Related: Safety Management System, Management Review
Management Review

A periodic, documented evaluation by top management of system performance, audit results, and changing circumstances. It produces decisions and resources for improvement.

Related: Safety Management System, Corrective Action
Incident

An unwanted event that caused or could have caused injury, ill health, or damage. It includes near misses, which are investigated for lessons even when no harm occurred.

Related: Incident Investigation, Root Cause Analysis, Near Miss
Near Miss

An event that did not result in injury or damage but had the potential to do so. Reporting and investigating near misses reveals failures before harm occurs.

Related: Incident, Incident Investigation
Incident Investigation

A systematic process to gather evidence, establish the sequence of events, and determine contributing factors and causes. Its purpose is prevention, not assigning blame.

Related: Root Cause Analysis, Corrective Action, Incident
Root Cause Analysis

A method for identifying underlying system and management failures that allowed an incident, rather than stopping at the immediate act or condition. It supports durable corrective actions.

Related: Incident Investigation, Corrective Action, Contributing Factor
Contributing Factor

A condition, act, or decision that increased the likelihood or severity of an incident without being its sole cause. Incidents typically have several interacting contributing factors.

Related: Root Cause Analysis, Incident Investigation
Corrective Action

A change made to eliminate the cause of a detected nonconformity or incident and prevent recurrence. Its effectiveness should be verified and tracked to closure.

Related: Root Cause Analysis, Management Review
Emergency Response Plan

Documented procedures for responding to fires, spills, medical emergencies, and other incidents, including roles, alarms, evacuation, and communication. It is tested through drills and reviewed after exercises.

Related: Emergency Drill, Incident
Emergency Drill

A planned simulation that tests emergency procedures, roles, and equipment under realistic conditions. Observations from the drill drive revisions to the emergency plan.

Related: Emergency Response Plan
Hazard Report

A documented notification of a hazard by a worker or observer that triggers review and action. An effective process confirms receipt and communicates the outcome to the reporter.

Related: Hazard Identification, Incident
Exposure Assessment

The measurement and evaluation of worker contact with a hazard, such as airborne contaminants, noise, or vibration, compared with recognized limits. Results inform control selection and medical surveillance.

Related: Occupational Exposure Limit, Personal Sampling, Health Surveillance
Occupational Exposure Limit

A regulatory or advisory maximum concentration or level of a workplace agent considered acceptable for an exposure period. Limits vary by jurisdiction and are not a boundary between safe and unsafe.

Related: Exposure Assessment, Personal Sampling
Personal Sampling

Measurement of a worker's exposure using equipment worn in the breathing zone or at the body during a representative shift. It estimates individual dose more accurately than fixed-area sampling.

Related: Exposure Assessment, Occupational Exposure Limit
Health Surveillance

Ongoing, systematic monitoring of worker health through examinations, questionnaires, or biological tests related to workplace exposures. Findings are used to prevent further harm and evaluate controls.

Related: Exposure Assessment, Occupational Illness
Occupational Illness

A disease or disorder caused or aggravated by work conditions or exposures, often developing over time. Recognition depends on exposure history, medical evaluation, and sometimes reporting obligations.

Related: Health Surveillance, Exposure Assessment
Safety Culture

The shared values, beliefs, and behaviors that determine how seriously an organization treats health and safety. It is revealed by what leaders reinforce and what workers actually do.

Related: Safety Climate, Leadership Commitment, Behavior-Based Safety
Safety Climate

Workers' shared perceptions of safety policies, practices, and priorities at a point in time. It is commonly measured through surveys and can shift faster than underlying culture.

Related: Safety Culture, Leadership Commitment
Leadership Commitment

Visible, consistent action by senior leaders that prioritizes health and safety, such as allocating resources, participating in inspections, and holding managers accountable. It shapes culture.

Related: Safety Culture, Management Review
Behavior-Based Safety

A process that observes work behaviors, provides feedback, and reinforces safe practices. It complements, but must not replace, engineering controls and system-level improvements.

Related: Safety Culture, Administrative Control
Competency

A combination of knowledge, skills, and judgment required to perform a work role safely and effectively. Competency is verified through evidence, not assumed from job title.

Related: Training Needs Assessment, Competency Assessment
Training Needs Assessment

A systematic determination of the knowledge and skills workers require for their tasks and the gaps that training must close. It considers legislation, hazard profiles, incident trends, and role changes.

Related: Competency, Competency Assessment
Competency Assessment

The process of gathering evidence, such as observation, testing, or records, to confirm that a person can perform required tasks to a defined standard. Results guide training and authorization.

Related: Competency, Training Needs Assessment
Communication Plan

A structured approach defining what safety information is shared, with whom, through which channels, and how often. It supports consultation, hazard awareness, and consistent messaging.

Related: Leadership Commitment, Safety Culture
Audit

An independent, systematic examination of the management system or workplace practices against defined criteria. Findings identify conformity, nonconformity, and opportunities for improvement.

Related: Inspection, Key Performance Indicator, Corrective Action
Inspection

A planned, routine examination of the workplace to identify hazards and verify controls and compliance. Observations are recorded, assigned for action, and tracked to completion.

Related: Audit, Hazard Identification
Key Performance Indicator

A measurable metric chosen to track progress toward a safety objective. Effective indicators combine lagging outcomes with leading activities such as inspections and training completion.

Related: Lagging Indicator, Leading Indicator, Management Review
Lagging Indicator

A metric that measures outcomes after they occur, such as injury frequency or lost-time claims. It confirms results but provides little early warning of emerging risk.

Related: Leading Indicator, Key Performance Indicator
Leading Indicator

A metric that measures preventive activities or conditions before harm occurs, such as hazard reports closed or training completed. It offers earlier signal of control effectiveness.

Related: Lagging Indicator, Key Performance Indicator
Nonconformity

A failure to meet a specified requirement, whether legal, procedural, or from a management system standard. It is documented and addressed through correction and corrective action.

Related: Corrective Action, Audit
Continual Improvement

The recurring process of enhancing safety performance by setting objectives, evaluating results, and adjusting the system. It relies on data, review, and sustained leadership attention.

Related: Management Review, Key Performance Indicator