Who provides written permission to authorize personnel entry into a restricted area?

The individual responsible for providing written permission to authorize personnel entry into a restricted area is typically the commander. This is because the commander holds the ultimate authority and responsibility over the operations and security of the area, making decisions that align with the overall mission and safety protocols. The commander ensures that only authorized personnel can enter restricted spaces, maintaining the integrity of security measures in place.

The roles of the other individuals mentioned, while important, do not carry the same level of authority as that of the commander regarding access permissions. The officer in charge may manage day-to-day operations and control, but approval for restricted area access needs to come from someone at a higher command level. The security chief oversees the enforcement of security measures but does not typically issue access permissions themselves. The site manager manages operations of the site, but their authority in terms of access to restricted areas can vary based on organizational structure and is often subordinate to the commander's directives.