The concept of regulatory compliance is simple: compliance maintains the safety and welfare of the general public. A few examples of the more common regulations include NERC for the electricity generation and distribution industry, HIPAA for medical records, and FSMA that applies to the national food supply. Each of these, and many other similar requirements in other industries, include guidelines or recommendations for physical security to limit access to sensitive areas.
In order to comply, organizations must take the necessary steps to reduce the risk of intrusion, and, they must prove that they have taken reasonable actions. Security entrances as a solution can meet both of these needs.