PART 840 — EXTRAORDINARY NUCLEAR OCCURRENCES [ 10 CFR 840 ]PART840 — EXTRAORDINARY NUCLEAR OCCURRENCES [ 10 CFR 840 ]Table of Contents§ 840.1 — Scope and purpose.§ 840.2 — Procedures.§ 840.3 — Determination of extraordinarynuclear occurrence.§ 840.4 — Criterion I—Substantial discharge of radioactive material or substantialradiation levels offsite.[Last FR update: 06/13/1984 ]§ 840.5 — Criterion II—Substantial damages to persons offsite or property offsite.Authority: Sec. 161 of the Atomic Energy Act of 1954,Pub. L. 83–703, 68 Stat. 919 (42U.S.C. 2201); sec. 170 of the Atomic Energy Act of 1954,Pub. L. 85–256, 71 Stat. 576, as amended by Pub. L. 89–645, 80 Stat. 891 (42U.S.C. 2210); Department of Energy Organization Act, Pub.L. 95–91, 91 Stat. 565–613(42U.S.C. 7101–7352).Source: 49FR 21473, May 21, 1984, unless otherwise noted.§ 840.1 Scope and purpose.(a) Scope.This subpart applies to those DOEcontractor activities to which the nuclear hazards indemn...