23 February 2026

Course Overview

OHTA 505

OHTA 505 provides an in-depth understanding of how hazardous substance exposures can be effectively controlled in real workplace settings. The module builds on previously learned assessment and monitoring principles, expanding them into practical techniques for reducing and managing occupational health risks.

The course covers the full scope of control strategies—from engineering solutions and process design to personal protection and verification of control effectiveness. Participants learn not only what control measures are available, but also how to select, design, implement, and evaluate them to ensure they are efficient, compliant, and sustainable within different work environments.

By completing this course, participants will gain the knowledge and practical skills to identify appropriate control solutions, implement them effectively, and verify their performance. It’s a vital module for occupational hygienists, safety professionals, and anyone responsible for maintaining safe working environments.

Course Format

Live Online

The curriculum encompasses advanced concepts and applied methodologies related to occupational exposure control. Core topics include:

• • Foundational principles of hazard control, with emphasis on the hierarchical structuring of control measures as a scientific and regulatory framework.

  • Engineering interventions, including the design, optimisation, and application of ventilation systems, process enclosure, and other mechanical strategies to reduce hazardous emissions and worker exposure.

  • Administrative and procedural controls, focusing on organisational policy, work practice design, training, and exposure minimisation strategies that enhance systemic risk management.

  • Selection, use, and maintenance of personal protective equipment (PPE), grounded in performance standards, limitations of protection, and integration within a broader control strategy.

  • Design and performance evaluation of local exhaust ventilation (LEV) systems, including theoretical modelling, measurement criteria, and compliance considerations.

  • Verification and assessment of control effectiveness, employing monitoring, inspection, and analytical techniques to evaluate system performance, reliability, and alignment with occupational hygiene best practice.