Who must approve drill packages prior to conducting ETI drills?

The Commanding Officer (CO) plays a pivotal role in maintaining safety, efficiency, and operational readiness within a command. Approving drill packages prior to conducting Emergency Training Instructions (ETI) drills falls under the CO's responsibility because they oversee the overall mission and training objectives of the command. The approval process ensures that the drills are appropriate, align with operational needs, and adhere to safety protocols. It is critical for the CO to ensure that all training is relevant and effectively prepares personnel for potential emergencies, contributing to the overall effectiveness of the command's operations.

Each of the other roles, while important in their various functions, do not hold the direct authority required for the approval of drill packages. The Chief of Staff, Executive Officer, and Engineering Officer have their own specific responsibilities, but the final approval for such critical training components rests with the CO, emphasizing their role in leadership and command oversight.