All workers are subject to random testing, which can occur at any time when they are at work. This includes which days?

The correct choice is that random testing can occur on weekends and holidays because the policy regarding testing is designed to ensure a continuous and consistent approach to safety and compliance. In workplaces where safety is paramount, such as those involving heavy machinery or hazardous materials, the goal is to mitigate any risks associated with substance use at all times when employees might be on duty.

Therefore, random testing is not limited to weekdays or specific occasions like paydays or only holidays. It encompasses weekends and holidays as well, ensuring that all periods of potential employee presence at work are covered. This approach helps maintain integrity and safety in the workplace by not allowing employees to predict when testing might occur, thus disincentivizing any substance use that could impair job performance.