When is it appropriate for an employee to report an employer's noncompliance with health and safety regulations?

The correct choice highlights that an employee should report an employer's noncompliance with health and safety regulations when the employer does not take steps to correct the issue. This scenario is significant because it indicates that an ongoing problem exists that could endanger the health and safety of employees and potentially customers.

Reporting noncompliance is critical when the employer has been made aware of the issue but fails to act on it. This inaction not only reflects negligence but also demonstrates a disregard for workplace safety standards. Employees have a responsibility to advocate for a safe working environment, and reporting these concerns is a necessary step when their employer does not rectify dangerous situations.

In contrast, feeling uncomfortable might stem from personal feelings rather than a significant safety issue, and while these feelings are valid, they do not necessitate a report on their own. Reporting issues involving a coworker is also important, but it primarily depends on the nature of that issue. Finally, mere public knowledge of the issue does not guarantee that a report is needed; it is the lack of corrective action from the employer that truly warrants a report. Thus, the emphasis on the employer's inaction creates a clear rationale for reporting, reinforcing the importance of addressing health and safety regulations in the workplace.