10 CFR § 52.147 - Duration of design approval.

---
identifier: "/us/cfr/t10/s52.147"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 52.147 - Duration of design approval."
title_number: 10
title_name: "Energy"
section_number: "52.147"
section_name: "Duration of design approval."
chapter_name: "NUCLEAR REGULATORY COMMISSION"
part_number: "52"
part_name: "LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Atomic Energy Act of 1954, secs. 103, 104, 147, 149, 161, 181, 182, 183, 185, 186, 189, 223, 234 (42 U.S.C. 2133, 2134, 2167, 2169, 2201, 2231, 2232, 2233, 2235, 2236, 2239, 2273, 2282); Energy Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C. 5841, 5842, 5846, 5851); 44 U.S.C. 3504 note."
regulatory_source: "72 FR 49517, Aug. 28, 2007, unless otherwise noted."
cfr_part: "52"
---


# 52.147 Duration of design approval.

A standard design approval issued under this subpart is valid for 15 years from the date of issuance and may not be renewed. A design approval continues to be valid beyond the date of expiration in any proceeding on an application for a construction permit or an operating license under part 50 or a combined license or manufacturing license under part 52 that references the final design approval and is docketed before the date of expiration of the design approval.