Question 1 of 7: OHSA Compliance Costs, System Safety, and Non-Traditional-Sector Hazards

Question 1: OHSA Compliance Costs, System Safety, and Non-Traditional-Sector Hazards (20 marks: 7/7/6)

Question text not reproduced: the examination questions are © Engineers and Geoscientists BC. Open the official past paper (linked at the top of this page) to read the question, then follow the worked solution below.

(i) Costs of OHSA Compliance That Smaller Companies Object To

Occupational health and safety legislation (in Canada, the provincial/territorial Occupational Health and Safety Acts — Ontario's is literally titled the OHSA — backed by regulations, CSA standards such as Z1002, and enforced with the authority of the Workers' Compensation system) imposes real, ongoing costs on employers. Smaller companies most often object to the following categories, because the same absolute dollar figure lands proportionally far heavier on a small firm's overhead than on a large one:

• Engineering control costs — machine guarding, ventilation retrofits, noise abatement, upgraded electrical/interlock systems — frequently capital expenditures a small firm cannot amortize over as large a production volume as a large competitor.
• Training and program-administration costs — mandatory orientation, WHMIS/hazard-communication training, joint health-and-safety committee time, and record-keeping, all consuming paid staff hours without directly generating output.
• Personal protective equipment — purchase, fitting, and periodic replacement (respirators, hearing protection, fall-arrest gear) across the whole workforce.
• Medical surveillance and monitoring — audiometric testing, exposure monitoring, and the specialist services (occupational hygienists, physicians) needed to run them.
• Compliance/inspection overhead and insurance — time lost to regulatory inspections and corrective-action follow-up, and workers' compensation premiums that rise with claims history regardless of firm size.
• Opportunity cost of production downtime — line stoppages for retrofits, permit-required work, and incident investigations.

The objection is rarely that the standards are unnecessary in principle; it is that a small employer cannot spread a largely fixed compliance cost over as large a revenue base as a large employer, so the cost per unit of output looks disproportionate — especially since the benefit (accidents that did not happen) is invisible and hard to attribute directly to the expenditure.

(ii) System Safety in Accident Causation and Avoidance

System safety is the engineering discipline that treats safety as a designed-in property of the entire system — design, materials, manufacturing, maintenance, and management — rather than as a matter of individual worker behaviour alone. Applied to accident causation and avoidance, it means:

• Causation is traced across the whole system, not stopped at the operator's unsafe act — design decisions, hardware condition, written procedures, human-factors fit, and management oversight are each examined as a potential contributing subsystem.
• Avoidance is proactive rather than reactive — hazards are identified and controlled through structured techniques (preliminary hazard analysis, fault tree analysis, failure modes and effects analysis, job safety analysis) applied iteratively across the design and operating life cycle, so hazards are engineered out before hardware is ever built or put into service, rather than being discovered only after an accident occurs.
• Corrective action targets the subsystem, not just the individual — a system-safety investigation of an accident that has already happened produces a design change, a new procedure, or a maintenance interval, rather than only disciplining or retraining the worker involved, which is what actually prevents the same failure from recurring with a different worker.

System safety was formalized first in the U.S. aerospace/defence industry (MIL-STD-882) and is now applied broadly, including in Canadian process and manufacturing sectors, as the governing framework for both preventing accidents before they occur and investigating them properly once they do.

(iii) New Hazards in Non-Traditional Sectors Emphasized by OHSA

Occupational health and safety legislation was originally built around the physical/mechanical hazard profile of manufacturing, construction, and mining. As employment has shifted toward service industries — healthcare, retail, financial services, hospitality, transportation, and office-based work, which now employ the majority of the workforce — the Act's emphasis has broadened to capture hazard types these non-traditional sectors actually present:

• Ergonomic/musculoskeletal hazards from repetitive checkout, data-entry, and workstation tasks, rather than heavy manual materials handling.
• Workplace violence and harassment — a leading hazard in healthcare, retail, financial institutions, and social services, now explicitly defined and regulated in most Canadian OHS Acts as its own hazard category requiring a dedicated risk assessment and program.
• Psychosocial/mental-health hazards — stress, burnout, shift work, and traumatic exposure (e.g. paramedics, call-centre staff), recognized as compensable, assessable hazards rather than left outside the Act's scope.
• Biological hazards for healthcare and personal-service workers (bloodborne pathogens, infectious disease).
• Indoor air quality and building-related hazards in office environments, and hazards arising from public interaction (transit operators, security personnel).

The Act's emphasis extends the internal responsibility system, hazard-identification duties, and worker rights (know/participate/refuse) into sectors that were traditionally seen as "low hazard" simply because they lacked heavy machinery.