OHCC case studies
OHCC · Put your knowledge to work in context.
The OHCC is a professional certification for practitioners who manage occupational health and safety programs and want independent verification of their competence. It suits safety coordinators, occupational health nurses and hygienists, program managers, and others whose work spans hazard control, regulatory compliance, and worker health surveillance. The exam is multiple choice and is organized around the breadth of program management rather than a single technical specialty: designing and evaluating safety management systems, interpreting occupational health and safety legislation, identifying hazards and applying the hierarchy of controls, assessing exposures, supporting health surveillance, preparing for emergencies and investigating incidents, building training and competency, and practicing ethically. Because the blueprint is broad, successful candidates usually prepare by auditing their own weak domains first, then working through scenario-based practice that forces them to choose between plausible controls rather than recall definitions. The OHCC case studies are 5 cases and about 4,196 words.
1The Ventilation Upgrade That Nobody Could Agree On
You are the newly hired occupational health advisor at a 240-worker metal-finishing plant. Air sampling you commissioned over two shifts found personal exposures to a degreasing solvent averaging 38 ppm (8-h TWA), with individual samples ranging 22–61 ppm.
911 words, about 5 min2The Positive Fit Test and the Reluctant Supervisor
A 47-year-old maintenance supervisor at a chemical warehouse has worked there 19 years. He is required to wear a half-face respirator with organic vapour cartridges when transferring drums.
788 words, about 4 min3The Night-Shift Cluster
Over eight weeks, four of the eleven night-shift workers in a plastics injection-moulding plant have attended the local emergency department with chest tightness and wheeze; two were treated for what was recorded as 'reactive airways dysfunction.' All four work on the same line and all started within the last 18 months. Day-shift workers on the same line report nothing similar.
911 words, about 5 min4The Competency Certificate That Doesn't Add Up
You manage OHS training for a 600-person logistics company with five distribution centres. Forklift operators must be trained and assessed as competent.
817 words, about 4 min5The Exposure Record You Were Asked to Change
You are the sole OHS professional at a 150-person foundry. Six months ago you completed a personal exposure assessment for respirable crystalline silica.
769 words, about 4 min