Items in ______ must be committed to memory to ensure a timely approach to hazardous situations.

The concept of "Bold Face" refers to critical emergency procedures and responses that operators must memorize in order to act quickly and effectively in hazardous situations. These items are typically highlighted in bold text in training materials or manuals, emphasizing their importance and the necessity for rapid recall. In emergency scenarios, time is of the essence; therefore, having these key actions committed to memory allows an operator to respond immediately without the need to reference external documents, which could delay the response and increase risks.

In contrast, while the Emergency Procedure Checklist, Standard Operating Procedures, and Flight Manual contain important information, they are generally referenced rather than memorized. These documents are vital for understanding overall operational procedures and guidelines but do not carry the same critical urgency as bold-faced items, which are explicitly designed for quick reaction in emergencies.