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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter C - Air Programs |
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Part 58 - Ambient Air Quality Surveillance |
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Subpart F - Air Quality Index Reporting |
§ 58.50 - Index reporting.
Latest version.
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§ 58.50 Index reporting.
(a) The State or where applicable, local agency shall report to the general public on a daily basis through prominent notice an air quality index that complies with the requirements of appendix G to this part.
(b) Reporting is required for all individual MSA with a population exceeding 350,000.
(c) The population of a metropolitan statistical area for purposes of index reporting is the latest available U.S. census population.
[71 FR 61302, Oct. 17, 2006, as amended at 80 FR 65466, Oct. 26, 2015]