When is the Job Hazard Assessment (JHA or JSA) typically performed?

The Job Hazard Assessment (JHA or JSA) is designed to identify, evaluate, and mitigate risks before work begins at a site. Conducting this assessment at the start of a job allows workers and management to identify potential hazards associated with specific tasks and implement controls or safety protocols accordingly. This proactive approach is crucial in ensuring the safety and well-being of all personnel involved in potentially hazardous environments, especially in those involving microbial remediation.

By performing the JHA before work commences, teams can prepare for and minimize risks, increasing the overall safety of the job site. This step is essential in fostering a strong safety culture and reduces the likelihood of incidents occurring during the work process. Other options, such as conducting assessments at the end of shifts or monthly during safety meetings, do not provide the timely intervention required to address hazards before they can lead to accidents or injuries. Similarly, post-incident assessments, while valuable for learning purposes, are reactive rather than proactive and do not prevent hazards from affecting workers at the start of a job.