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Regulations last checked for updates: May 14, 2025
Title 23 - Highways last revised: Jan 01, 1900
All Titles
Title 23
Chapter I
Part 490
Subpart H - Subpart H—National Performance Management Measures to Assess the Congestion Mitigation and Air Quality Improvement Program—On-Road Mobile Source Emissions
§ 490.801 - Purpose.
§ 490.803 - Applicability.
§ 490.805 - Definitions.
§ 490.807 - National performance management measure for assessing on-road mobile source emissions for the purposes of the Congestion Mitigation and Air Quality Improvement Program.
§ 490.809 - Data requirements.
§ 490.811 - Calculation of Total Emissions Reduction measure.
authority:
23 U.S.C. 134
,
135
,
148
;
49 CFR 1.85
source:
81 FR 13913, Mar. 15, 2016, unless otherwise noted.
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