Which of the following is a plant boundary area that helps protect sensitive operations?

• A. Public Lobby
• B. Guest Zone
• C. Owner Controlled Area
• D. Security Corridor

Answer: (C)

Access control boundaries around sensitive operations are built to prevent unauthorized entry and to screen people before they reach critical areas. The area labeled as owner controlled is the boundary zone where the plant owner enforces access rules, checks credentials, and monitors who comes in. This creates a buffer that stops unapproved individuals from moving closer to valuable or hazardous operations, reducing risk and increasing safety. Public lobby and guest zones are designed for general visitor flow and do not provide the targeted protection needed for sensitive operations. A security corridor offers a controlled path inside the site, but the boundary that explicitly reflects ownership and governs who may approach sensitive operations is the owner controlled area.