What must all crew members present to the Customer Service Representative before boarding?

The requirement for all crew members to present their Company ID Badge to the Customer Service Representative before boarding is rooted in the need for security and verification. The Company ID Badge serves as an official identification that confirms a crew member’s role with United Airlines, ensuring that only authorized personnel are allowed on board. This practice not only helps in maintaining airline safety standards but also helps in the identification process during boarding procedures.

In contrast, while a boarding pass is essential for passengers and relates to their travel, it does not apply to crew members who are conducting duties. A flight plan is primarily a document used by flight crews to navigate the aircraft and is not something that would be presented at boarding. The safety manual, on the other hand, is an important tool for crew members for reference during flights but is not required for boarding validation.

Thus, the presentation of the Company ID Badge is a pivotal procedural step that supports operational security within the airline.