Work Area 4 deals with maintenance, electrical engineering, training for and safety of process control facilities.

At present, it comprises the following working groups (AK):

AK 4.1 "Maintenance" 
AK 4.3 "Training and Continuing Education" 
AK 4.4 "Electric Trace Heating" 
AK 4.5 "Functional Safety" 
AK 4.6 "Electromagnetic Compatibility (EMC)" 
AK 4.7 "Explosion Protection" 
AK 4.9 "Security Systems"
AK 4.13 "Asset Management"
AK 4.14 "University Contacts"
AK 4.15 "Wireless & Mobile Automation"
AK 4.16 "RFID"
AK 4.17 "Energy Efficiency" 
AK 4.18 "Automation Security"