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EPA - 40 CFR PART 50

NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS

active, Most Current
Organization: EPA
Publication Date: 1 July 2017
Status: active
Page Count: 165

Document History

40 CFR PART 50
July 1, 2022
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
(a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part. (b) National primary ambient air quality standards define levels of air...
40 CFR PART 50
July 1, 2021
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part. (b) National primary ambient air quality standards define levels of air...
40 CFR PART 50
July 1, 2019
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
(a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part. (b) National primary ambient air quality standards define levels of air...
40 CFR PART 50
July 1, 2018
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
(a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part. (b) National primary ambient air quality standards define levels of air...
40 CFR PART 50
July 1, 2017
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
A description is not available for this item.
40 CFR PART 50
July 1, 2016
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
(a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part. (b) National primary ambient air quality standards define levels of air...
40 CFR PART 50
July 1, 2015
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
(a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part. (b) National primary ambient air quality standards define levels of air...
40 CFR PART 50
July 1, 2014
NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
(a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part. (b) National primary ambient air quality standards define levels of air...
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References

This document is referenced by:
ASTM D5011 - Standard Practices for Calibration of Ozone Monitors Using Transfer Standards
Published by ASTM on October 1, 2017
These practices describe means for calibrating ambient, workplace or indoor ozone monitors, using transfer standards. These practices describe five types of transfer standards: Practice A—Analytical...
This document is referenced by:
40 CFR PART 93 - DETERMINING CONFORMITY OF FEDERAL ACTIONS TO STATE OR FEDERAL IMPLEMENTATION PLANS
Published by EPA on July 1, 2013
Purpose. The purpose of this subpart is to implement section 176(c) of the Clean Air Act (CAA), as amended (42 U.S.C. 7401 et seq.), and the related requirements of 23 U.S.C. 109(j), with respect to...
This document is referenced by:
40 CFR PART 49 - INDIAN COUNTRY: AIR QUALITY PLANNING AND MANAGEMENT
Published by EPA on July 1, 2016
A description is not available for this item.
This document is referenced by:
40 CFR PART 62 - APPROVAL AND PROMULGATION OF STATE PLANS FOR DESIGNATED FACILITIES AND POLLUTANTS
Published by EPA on July 1, 2017
Introduction. (a) This part sets forth the Administrator’s approval and disapproval of State plans for the control of pollutants and facilities under section 111(d), and section 129 as applicable, of...
This document is referenced by:
40 CFR PART 35 - STATE AND LOCAL ASSISTANCE
Published by EPA on July 1, 2014
Applicability. This part codifies policies and procedures for financial assistance awarded by the Environmental Protection Agency (EPA) to State, interstate, and local agencies, Indian Tribes and...
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