10 CFR · Energy
§ 53.415 — Protection against external hazards.
eCFR · current through Jul 28, 2026
§ 53.415 Protection against external hazards.
Safety-related SSCs must be protected against or must be designed to withstand the effects of natural phenomena (e.g., earthquakes, tornadoes, hurricanes, floods, tsunami, and seiches) and constructed hazards (e.g., dams, transportation routes, military and industrial facilities) considering an event severity up to the design-basis external hazard levels as determined under § 53.510 without losing the capability to perform the safety functions identified under § 53.230. Specific requirements for earthquake engineering are included in § 53.480.
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Nearby Sections
11
§ 53.250
Defense in depth.§ 53.260
Normal operations.§ 53.270
Protection of plant workers.§ 53.440
Design requirements.§ 53.450
Analysis requirements.