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2004 and 2005 Transportation Conformity Rule Amendments Outreach Activities

Session 2: Background

FHWA Transportation Conformity and CMAQ Workshop
Summer 2004


New 8-hour ozone standard


New 8-hour ozone standard


Classification of 8-hour Nonattainment Ozone Areas

This map depicts the distribution and classification of designated 8-hour ozone nonattainment areas. Severe 17 (Los Angeles), Serious (Riverside Co.-Coachella Valley, San Joaquin, and Sacramento, CA), Moderate, Moderate EAC, Marginal, Subpart 1, and Subpart 1 EAC areas are shown. The map is intended to show the distribution of 8-hour nonattainment areas, mainly in California and the Southern and Eastern United States.

The 1-hour ozone standard


Conformity under the 1-hour ozone standard


EAC Areas and Conformity


Early Action Compact Areas
June 15, 2004

This map depicts the distribution of areas with Early Action Compacts. These areas are categorized into EAC areas that were designated attainment for the 8-hour standard, EAC areas that were designated nonattainment effective June 15, 2004, and EAC areas with deferred effective dates on their nonattainment designations. The map is intended to show the distribution of EAC areas, primarily in the Southern United States.

A portion of some of the counties are excluded from the EAC


New PM2.5 standards


Conformity under the PM10, CO, and NO2 standards

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