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A Class IV gate is primarily designed to serve restricted access purposes. This type of gate is often utilized in environments where security is of high importance and access needs to be carefully controlled. Class IV gates are typically used in situations such as sensitive facilities, military areas, or companies handling proprietary information, where unauthorized access must be strictly prohibited.

Restricted access gates may employ various security measures, including authentication protocols like keycards, biometric scanners, or a manual oversight system. This ensures that only authorized personnel can enter, thereby maintaining the integrity and confidentiality of the data or operations within that area.

While other gate types may cater to home security, parking access, or general public access, they do not inherently offer the high level of control and restriction associated with a Class IV gate. Such barriers are essential in ensuring that sensitive areas remain protected against potential threats or breaches.