What requirement must all fenced enclosures have regarding entry points?

For fenced enclosures, the requirement for having at least one gate that is locked when unattended ensures that access to the area can be controlled and secured. This is particularly important in facilities that handle compressed natural gas (CNG) and are subject to safety regulations. Locking the gate when the area is not in use helps to prevent unauthorized access, which could lead to safety hazards, theft, or accidental incidents involving hazardous materials.

This security measure reflects industry best practices and safety protocols aimed at protecting both personnel and the surrounding environment. By ensuring that there is a locked entry point when the enclosure is unattended, the facility demonstrates a commitment to maintaining safety and compliance with regulations concerning hazardous materials.