The controls listed here are not required for CIE but are notionally suggested for evaluation as you look to implement CIE
These frameworks may include controls that are unecessary, and you should evaluate the usefulness of both the framework as well as the suggested controls in your site.
IEC 62443
NIST 800-53
NIST 800-82
NERC CIP
NRC NEI 08-09
TSA Security Directive
Audible Alarm
Visual Alarm
Electro-mechanical switch
Emergency bypass
Power supply redundancy
Power reserves
Water reserves
Alternate coolant mechanisms
Separation of duties
Require human interaction
Reduce data exposure
Background checks
Manual inventory
CCTV
Physical Access Control
Physical door locks
Physical enclosure/cabinet locks
Physical alarms
Fire suppression
Mantraps
Human security guards
UAV mitigation
Vibration detection
Asset Inventory
Network Security Monitoring
Incident Response
Secure Remote management
Logging
Security Architecture
Vulnerability Management
Configuration Management
Supply chain risk management