Which of the following is considered a violation that could lead to certification revocation?

Intoxication while on duty is a serious violation that can lead to certification revocation because it directly impacts the safety and performance of the individual as well as those around them. Operating machinery or overseeing tasks while impaired poses a significant risk to both personal and workplace safety. Professional standards in many fields, especially in construction and surface operations, emphasize the importance of maintaining a clear and sober mind to ensure high safety standards and compliance with regulations.

Working overtime, registering for additional training, and reporting daily tasks typically involve permissible and in some cases advisable practices in the workplace. Overtime may be part of a normal work schedule, additional training is encouraged for skill enhancement, and reporting daily tasks is essential for effective communication and management. None of these options inherently jeopardize safety or violate professional conduct standards in the same way that being intoxicated does. Therefore, being under the influence while on duty is strictly prohibited and can result in severe consequences, including the loss of certification.