---
kind: "section"
citation: "10 C.F.R. § 53.400"
title: "10"
number: "53.400"
heading: "Design features for licensing-basis events."
url: "https://uscodex.org/cfr/10/53.400"
---

# §53.400. Design features for licensing-basis events.

- (a) Design features must be provided for each commercial nuclear plant such that, when combined with corresponding human actions and programmatic controls, the plant will satisfy the safety criteria defined in §§ [53.210](/cfr/10/53.210.md) and [53.220](/cfr/10/53.220.md).
- (b) Design features must ensure that the safety functions identified in [§ 53.230](/cfr/10/53.230.md) are fulfilled during licensing-basis events (LBEs).

## Notes

### Authority

Authority: Atomic Energy Act of 1954, secs. 11, 101, 103, 108, 122, 147, 161, 181, 182, 183, 184, 185, 186, 187, 189, 223, 234 (42 U.S.C. 2014, 2131, 2132, 2133, 2134, 2135, 2138, 2152, 2167, 2169, 2201, 2231, 2232, 2233, 2234, 2235, 2236, 2237, 2239, 2273, 2282); Energy Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C. 5841, 5842, 5846, 5851); Nuclear Waste Policy Act of 1982, sec. 306 (42 U.S.C. 10226); National Environmental Policy Act of 1969 (42 U.S.C. 4332); 44 U.S.C. 3504 note; Pub. L. 115-439, 132 Stat. 5571.

### Source

Source: 91 FR 15794, Mar. 30, 2026, unless otherwise noted.