40 CFR 61.192 — Standard.

eCFR 2026-07-15 public domain
Official text: ecfr.gov →

Full text

No source at a Department of Energy facility shall emit more than 20 picocuries per square meter per second (pCi/(m 2-sec)) (1.9 pCi/(ft 2-sec)) of radon-222 as an average for the entire source, into the air. This requirement will be part of any Federal Facilities Agreement reached between Environmental Protection Agency and Department of Energy.

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