40 CFR § 61.192 - Standard.
---
identifier: "/us/cfr/t40/s61.192"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 61.192 - Standard."
title_number: 40
title_name: "Protection of Environment"
section_number: "61.192"
section_name: "Standard."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "61"
part_name: "NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
regulatory_source: "38 FR 8826, Apr. 6, 1973, unless otherwise noted."
cfr_part: "61"
---
# 61.192 Standard.
No source at a Department of Energy facility shall emit more than 20 picocuries per square meter per second (pCi/(m
<sup>2</sup>-sec)) (1.9 pCi/(ft
<sup>2</sup>-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.
[54 FR 51701, Dec. 15, 1989, as amended at 65 FR 62158, Oct. 17, 2000]