10 CFR § 2.406 - Finality of decisions on separate issues.

---
identifier: "/us/cfr/t10/s2.406"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 2.406 - Finality of decisions on separate issues."
title_number: 10
title_name: "Energy"
section_number: "2.406"
section_name: "Finality of decisions on separate issues."
chapter_name: "NUCLEAR REGULATORY COMMISSION"
part_number: "2"
part_name: "AGENCY RULES OF PRACTICE AND PROCEDURE"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Atomic Energy Act of 1954, secs. 29, 53, 62, 63, 81, 102, 103, 104, 105, 161, 181, 182, 183, 184, 186, 189, 191, 234 (42 U.S.C. 2039, 2073, 2092, 2093, 2111, 2132, 2133, 2134, 2135, 2201, 2231, 2232, 2233, 2234, 2236, 2239, 2241, 2282); Energy Reorganization Act of 1974, secs. 201, 206 (42 U.S.C. 5841, 5846); Nuclear Waste Policy Act of 1982, secs. 114(f), 134, 135, 141 (42 U.S.C. 10134(f), 10154, 10155, 10161); Administrative Procedure Act (5 U.S.C. 552, 553, 554, 557, 558); National Environmental Policy Act of 1969 (42 U.S.C. 4332); 44 U.S.C. 3504 note. Section 2.205(j) also issued under Sec. 31001(s), Pub. L. 104-134, 110 Stat. 1321-373 (28 U.S.C. 2461 note)."
regulatory_source: "27 FR 377, Jan. 13, 1962, unless otherwise noted."
cfr_part: "2"
---


# 2.406 Finality of decisions on separate issues.

Notwithstanding any other provision of this chapter, in a proceeding conducted pursuant to this subpart and appendices N of parts 50 or 52 of this chapter, no matter which has been reserved for consideration in one phase of the hearing shall be considered at another phase of the hearing except on the basis of significant new information that substantially affects the conclusion(s) reached at the other phase or other good cause.