In what condition must an employee be trained before performing asbestos-related work?

Training is a critical requirement for employees who will be performing asbestos-related work due to the significant health risks associated with exposure to asbestos. The correct answer highlights that training must occur before an employee begins any remediation work. This is essential for ensuring that workers are adequately prepared to handle hazardous situations safely, understand the necessary precautions, and comply with regulatory requirements to minimize risks to both themselves and others.

Providing this training before starting remediation work ensures that employees are familiar with proper safety protocols, personal protective equipment, and emergency response measures specific to asbestos handling. The timing of this training is critical; employees who receive it after they have already started working may be exposed to dangers they are unprepared to manage, increasing the likelihood of accidents or health issues related to asbestos exposure.

In contrast, the other choices suggest inadequate timing or conditions for training that do not align with safety standards and regulations regarding hazardous materials. This reinforces the necessity of proactive training before engaging in any high-risk activities associated with asbestos.