AWWA Cybersecurity Guidance for the Water Sector (American Water Works Association) PE-4: PE-4 Protection against fire, flood, earthquake, explosion and unrest

Protect facilities physically against hazards such as fire, flooding, earthquakes, explosions and civil disturbance. A small-system baseline control (Appendix K, category 5): suppression systems, flood protection, fencing and hardened openings.

Maintained by Gerard BlokdykControl text last updated 21 May 2026

Other controls in PE: Physical and Environmental Protection – AWWA Cybersecurity Guidance for the Water Sector (American Water Works Association)

PE-1 PE-1 Security perimeters and entry control
PE-2 PE-2 Entry-controlled secure areas
PE-3 PE-3 Physical security of offices, rooms and facilities
PE-5 PE-5 Procedures for working in secure areas
PE-6 PE-6 Mail rooms and loading areas isolated from OT and enterprise areas
PE-7 PE-7 Protection of equipment from environmental hazards and unauthorised access
PE-8 PE-8 Protection against power failure (UPS)
PE-9 PE-9 Protection of power and telecommunications cabling

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