What critical document must be submitted through the embassy before range conduct?

The correct choice emphasizes the significance of submitting an Operational Risk Management (ORM) worksheet prior to range conduct. The ORM worksheet is a vital tool used to identify, assess, and mitigate potential risks associated with training exercises, particularly those involving live fire or other potentially hazardous activities.

This document is necessary for ensuring that all safety measures are considered and that appropriate precautions are implemented. The ORM process involves a systematic approach which helps maintain a safe training environment and complies with regulatory and safety requirements. By submitting the ORM worksheet via the embassy, it facilitates communication and reinforces adherence to safety protocols with both local authorities and the command.

While the other options contribute to the overall safety and planning of range activities, none serve the specific purpose of identifying and managing operational risks in the detailed manner that the ORM worksheet provides. A range clearance request primarily focuses on securing permission for usage, an operational safety review tends to be a broader analysis post-incident, and a training effectiveness report evaluates outcomes rather than addressing safety before an operation begins.