Where must an RCO keep his/her license while on duty?

An RCO must keep their license on their person while on duty to ensure that it is readily accessible and can be presented when required. This practice reflects the importance of accountability and regulatory compliance in the operation of remote-controlled equipment. Having the license on hand means that the operator can quickly verify their qualifications and uphold safety standards, which is crucial in environments where precise operation and safety protocols are mandatory.

Other options suggest places where the license might be stored, but they are not practical in the context of immediate accessibility and enforcement of regulations. Keeping the license locked away in a safety locker, for instance, would delay verification processes in case of an inspection. Similarly, placing the license in a control room would not guarantee that it could be presented quickly if needed, and keeping it in a grip on the controlling locomotive could lead to a loss or damage under operating conditions. Thus, maintaining possession of the license at all times is the most effective and compliant practice.