Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 58.50: Index reporting.

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 58—AMBIENT AIR QUALITY SURVEILLANCE
Subpart F—Air Quality 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.

Collected 2026-08-27T02:26:04Z. Source file · JSON

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