Hierarchy of Controls for Workplace Hazard Reduction Training Course

Course overview

Workplace risk assessments often identify hazards but stop short of selecting controls that reliably reduce exposure. Teams may default to PPE, warning signs or refresher training because they are familiar, even where a hazardous substance can be substituted, an energy source can be isolated, or a task can be redesigned. This leaves safety professionals and operational leaders needing a defensible method for comparing control options, explaining residual risk and prioritising investment in measures that protect people without depending solely on individual behaviour.

This course applies the hierarchy of controls—elimination, substitution, engineering controls, administrative controls and personal protective equipment—to real workplace hazards. Participants learn to distinguish hazard, exposure and risk; test whether a proposed control addresses the source, pathway or worker; use task-based risk assessment evidence; and combine controls where one measure is insufficient. They work with control-selection matrices, the NIOSH hierarchy of controls, ISO 45001 operational planning requirements and Bowtie analysis to develop practical, proportionate control strategies for physical, chemical, biological and ergonomic hazards.

Instructor-led lessons are paired with facilitated case analysis, control-design workshops and peer review of proposed solutions. Participants assess a selected workplace scenario, challenge weak PPE-led recommendations, document assumptions and identify verification measures such as exposure monitoring, inspections and leading indicators. Each participant leaves with a completed hierarchy-of-controls action plan: a hazard-control register, prioritised recommendations, implementation owners, residual-risk rationale and review measures suitable for briefing a supervisor, safety committee or senior management. A certificate is issued on completion.

The course suits professionals who influence how work is designed, managed, maintained or inspected, from safety advisers and supervisors to engineers, facilities teams and operational managers.

Course objectives

By the end of this course, participants will be able to:

• Apply the hierarchy of controls to rank elimination, substitution, engineering, administrative and PPE options for a defined hazard.
• Distinguish hazard source, exposure pathway and worker contact when diagnosing why an existing control is failing.
• Construct a task-based hazard-control register that links activities, hazards, exposed groups, current controls and residual risk.
• Evaluate control effectiveness using the NIOSH hierarchy of controls, exposure evidence and reliability criteria.
• Develop engineering and substitution control concepts for chemical, physical, ergonomic and energy-related hazards.
• Use a control-selection matrix to compare feasibility, risk reduction, implementation cost and operational constraints.
• Create a Bowtie control map showing preventive barriers, mitigative barriers, escalation factors and assurance activities.
• Produce a prioritised hierarchy-of-controls implementation plan with owners, timescales, verification measures and review triggers.

Benefits of attending

Target competencies

Who should attend

• Health and Safety Advisers — who must recommend controls that reduce exposure and withstand scrutiny during investigations or audits
• Operations Managers — who approve work methods, equipment changes and risk-reduction investments across their teams
• Frontline Supervisors — who translate risk assessments into practical controls for daily work activities
• Facilities and Maintenance Managers — who manage plant, isolation, guarding, ventilation and contractor work controls
• Engineers and Process Improvement Specialists — who can eliminate hazards through equipment, layout and process design
• Occupational Hygiene and Environmental Health Practitioners — who need to connect exposure findings with stronger control strategies

Requirements and prerequisites

This is a foundation-to-intermediate course and does not require a formal safety qualification. Participants should be able to read a basic risk assessment, recognise common workplace hazards and describe the tasks carried out in their own area. Familiarity with likelihood-and-consequence risk matrices, incident reports or safe work procedures is helpful but not essential. A complete beginner should expect an introduction to these concepts before applying them. No engineering design software, occupational hygiene qualification, legal-specialist knowledge or prior Bowtie experience is required. Participants benefit most by bringing one genuine hazard or task from their workplace to analyse.

Training methodology

The programme uses short instructor-led modules to establish the hierarchy of controls, followed by facilitated analysis of maintenance, chemical-handling, manual-handling and machinery scenarios. Participants work in small groups to identify exposure pathways, generate higher-order alternatives and score options in a control-selection matrix. The instructor critiques proposed controls against feasibility, reliability and verification requirements. On the final day, each participant applies the method to a workplace-relevant hazard and receives peer and instructor feedback while completing an implementation plan for use after the course.

Course outline

Day 1: Hazard reduction logic and the hierarchy of controls

• Hazard, exposure, risk and consequence distinctions
• The NIOSH hierarchy of controls model
• Elimination as a design and procurement decision
• Substitution screening for materials, processes and equipment
• Engineering, administrative and PPE control boundaries
• Control reliability and dependence on human behaviour
• ISO 45001 operational planning and control requirements

Workshop: Participants dissect a PPE-led risk assessment and produce a hierarchy-of-controls critique identifying stronger options and evidence gaps.

Day 2: Finding the source, pathway and exposure point

• Task-based hazard identification techniques
• Source-pathway-receptor analysis
• Job safety analysis and task-step decomposition
• Exposure groups and vulnerable worker considerations
• Reviewing incident, near-miss and inspection evidence
• Physical, chemical, biological and ergonomic hazard pathways
• Current-control adequacy and failure-mode identification

Workshop: Using a maintenance-task case study, participants create a task-based hazard-control register with exposure pathways and current-control weaknesses.

Day 3: Designing and selecting stronger controls

• Elimination through task, layout and process redesign
• Substitution assessment and unintended-risk checks
• Engineering controls including guarding, enclosure and local exhaust ventilation
• Energy isolation, interlocks and fail-safe design principles
• Administrative control limits and procedural human factors
• PPE selection as a residual-risk measure
• Control-selection matrices for feasibility and risk reduction

Workshop: Teams develop and score alternative controls for a solvent-handling and machinery-interaction scenario, then produce a recommended control package.

Day 4: Verifying barriers and managing residual risk

• Bowtie analysis structure and terminology
• Preventive barriers, mitigative barriers and recovery controls
• Escalation factors and barrier degradation
• Control assurance through inspections and preventive maintenance
• Exposure monitoring and performance verification measures
• Residual-risk evaluation and acceptance criteria
• Management of change and control-review triggers

Workshop: Participants build a Bowtie control map for a selected high-consequence hazard and define assurance activities for each critical barrier.

Day 5: Implementing control improvements in the workplace

• Prioritising actions by risk reduction, practicability and urgency
• Cost-benefit framing for higher-order control proposals
• Assigning control owners, milestones and dependencies
• Writing defensible control rationale for risk registers
• Leading indicators for control implementation and performance
• Worker consultation and operational acceptance testing
• Communicating residual risk to managers and safety committees

Workshop: Each participant completes and presents a hierarchy-of-controls implementation plan containing a register, priority actions, owners, verification measures and review dates.

Tools & standards covered

ISO 45001:2018, OSHA 29 CFR 1910, BowtieXP, Microsoft Excel

A typical training day

Live online deliveries follow the same structure in the East Africa Time zone, with shorter screen blocks and longer breaks.

What the fee includes

How you can take this course

Certification

Participants who complete the full five days receive the Skillset Development Certificate of Completion, stating the course title, course code, dates and delivery format — suitable for professional-development records and employer reimbursement.

Frequently asked questions