10 CFR 76.89
§ 76.89 Criticality accident requirements.
United States · 10 CFR — Energy · Status: effective
Cite this
- Citation
- 10 CFR 76.89, § 76.89 Criticality accident requirements, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/38592
- Permanent ID
ys:prov:38592@1- SHA-256
75d324c09463feb33c96c6d32d11a03533b6aeb0cd2570fea00b7410a2935c6b
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(a) The Corporation must maintain and operate a criticality monitoring and audible alarm system meeting the requirements of paragraph (b) of this section in all areas of the facility. The Corporation may describe for the approval of the Commission defined areas to be excluded from the monitoring requirement. This submittal must describe the measures that will be used to ensure against criticality, including kinds and quantities of material that will be permitted and measures that will be used to control those kinds and quantities of material.
(b) The system must detect and annunciate a criticality that produces an absorbed dose in soft tissue of 20 rads of combined neutron and gamma radiation at an unshielded distance of 2 meters from the reacting material within 1 minute. Coverage of all monitored areas must be provided by two detectors.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.