Which of the following is a cause for revocation of Surface Foreman certification?

The cause for revocation of Surface Foreman certification due to the use of controlled substances without a prescription is grounded in safety and regulatory compliance. This behavior can impair judgement and performance, posing significant risks not only to the individual but also to coworkers and the overall safety of the mining operation. Certifications like that of a Surface Foreman are issued with the understanding that the holder will maintain a level of responsibility and reliability necessary to ensure a safe working environment. Engaging in substance misuse breaches these standards and undermines the trust placed in the individual to lead and uphold safety protocols.

On the other hand, accidental damage to mine equipment is typically seen as a part of operational risks and does not reflect negligence or willful misconduct. Directing a safety incident may relate to circumstances that could vary greatly in terms of accountability and context, making it a complex situation that may not automatically result in revocation. Managing work schedules is generally a standard part of a Surface Foreman's duties and does not inherently warrant disciplinary action unless tied to neglect of safety protocols or regulations.