What signage is required on all access panels?

The requirement for signage on all access panels focuses on ensuring safety and clear communication regarding the use of these panels. The option that states "Access Panel: Do Not Obstruct" is particularly significant because it directly addresses the need to keep the access panels clear and unobstructed for maintenance, emergency access, and proper functioning of the ventilation system.

This warning helps prevent potential hazards associated with blocked access panels, enabling quick service and compliance with safety regulations. Preventing any obstruction can also aid in maintaining airflow and reducing the risk of fire hazards, which is a vital aspect of the NFPA 96 Standard.

The other signage options, while they may be relevant in other contexts, do not specifically communicate the importance of maintaining clear access to these critical components of commercial cooking operations. Signage like "Authorized Personnel Only" could imply restrictions but does not emphasize the need for unobstructed access. "Danger: High Voltage" and "Emergency Access Only" are also important in different scenarios but are not applicable to every access panel and could mislead regarding general access needs. Thus, the chosen wording effectively emphasizes the necessity for clear access conditions, aligning with fire prevention and safety strategies.