Which of the following actions occurs first during the loading process?

The correct answer is the delivery of the NOTOC (Notice to Captain) as it is the critical initial step in the loading process. This document provides vital safety information about the cargo that is being loaded onto the aircraft, such as hazardous materials and weight limits. Delivering the NOTOC to the flight crew ensures they are informed about the potentially dangerous items and can make the necessary preparations.

While executing the Load Report, securing wheelchairs and battery boxes, and conducting a verbal check-in are all important components of the loading process, they occur after the NOTOC has been delivered. Each subsequent step relies on the initial safety information contained in the NOTOC to ensure that the loading process is conducted safely and efficiently.