All of the issue paper summaries have a reference to the official issue paper title if the official title differs from the title of the summary. In addition, the text boxes provide a very concise summary of the Subcommittee's discussion, and the issue papers contain a new section Highlights of the Subcommittee's Discussion. The latter additions should be reviewed carefully.

Title of Summary Comments received Changes from 10/24/97 draft Identifying the Areas Responsible for Air Quality Problems New summary Institutional Mechanism for Development and Implementation of Regional Strategies None Added the last two sentences to text box. Regional Air Management Partnerships and Areas of Influence: A New Approach to Air Quality Control Regions Chastain Added the last two sentences to text box. Deleted material from second bullet in first section. Changed last sentence in first paragraph in second section, this should be checked to ensure comment has been addressed. Added sentence about pollutant flow across nonattainment area boundary (as well as long distance transport). Area of Violation Boundaries Krupnick, Kleeman, Baker This issue paper summary was updated to be consistent with the final version of the issue paper. It is a major rewrite and should be reread. Addressed the comment about level of analysis in the discussion. The introduction to this paper will be rewritten in the next draft to address the traditional approach of drawing boundaries. Framework for Areas of Influence/Areas of Violation (AOI/AOV): Responsibility for Reaching Attainment Mardock, Krupnick, Chastain, O'Brien, White Responded to numerous comments on description of how the Subcommittee responded to the paper. Added language to the end of the first full paragraph of the first section and changed the title of the section. Changed first sentence in second bullet in section on the conceptual framework. Options for Designating PM-Fine Areas O'Brien, White, Kleeman This issue paper was rewritten to clarify the timing and context of the Subcommittee's discussion of the issues. Changed title of third section. Added excerpt from Presidential Directive. Attainment Dates for New National Ambient Air Quality Standards (NAAQS)* O'Brien, White, Mardock Changed "recommended" to "generally agreed." Changed "as quickly as possible" to as "expeditiously as practicable." Changed the second section's title from "principles" to "considerations." Identified the ad hoc group. Revised third bullet in section on recommended approach. Monitoring Incentives Collingwood, White Changed tone to match other plain English summaries (significant rewrite of box and background paragraph). Added "or neighboring" areas. Deleted references to inadequate monitoring networks and to dates. Classifying Areas in Violation of the New Air Quality Standards* Baker This issue paper summary was updated to be consistent with the final version of the issue paper. It is a major rewrite and should be reread. Progress During Air Quality Planning by States White, O'Brien, Tauton, Chastain, Mardock, Dougherty Clarified the recommendations while maintaining consistency with the issue paper and the recommendations in the issue paper. Integrated Implementation White, Seidman Added material to text box on Subcommittee's agreement. Provided more background information. Added a new section on Phase I issue paper. Added public interest groups' concerns about certain recommendations. This is a major rewrite and should be reread. Regional Haze None Changed "Subcommittee recommends" to "paper recommends" and "Subcommittee suggests" to "paper suggests." Transportation Conformity None Added material to end of text box to describe effect of Presidential Directive on Subcommittee's discussion of issue paper. Treatment of Areas in Which Air Quality Trends Indicate the Risk of Violating an Ambient Standard O'Brien Changed sentence following "Burden on Economy." Changed first sentence in table. Clarified that there are no new requirements. Implementation of a "Too Close to Call" Category for Attainment Designation New summary Air Quality Models and Emission Inventories: Their Development, Availability, Evaluation, Use, and Limitations* New summary Utilization of an Exposure-Based Monitor System New summary Control Strategies Vernet, Baker, White Revised to include the original issues from the 6/23 paper. Clarified whose (i.e., the paper's) recommendations are in the table. Added second paragraph to background section. This is a major rewrite of the summary. Using Economic Incentives to Achieve Air Quality Objectives* Tauton, White, Chastain, Krupnick, Mardock Expanded sections on Clean Air Investment Fund and early emission reductions. Did not further specify the multiple considerations given in analytical framework. Will add Subcommittee's discussion after December meeting. Reasonable Further Progress White, Chastain, Peirce-Sandner Added description of flowchart. There are significant changes to this summary and it should be reread. Reviewing New Sources of Air Pollution Prior to Construction None Opportunity Matrix for Ozone, Fine Particulate Matter (PM-fine), and Regional Haze Integration O'Brien, Collingwood The language in the third section, especially the last paragraph should be checked. Implementation Strategies for Contingency Measures White, Gade, Seidman This issue paper summary was updated to be consistent with the final version of the issue paper. It is a major rewrite and should be reread. Rewards and Sanctions None Made editorial changes. Measures Affecting Cars, Trucks, Buses, and Other Vehicles O'Brien, Paul Verified consistency of summary of issues with issue paper. Made editorial changes.

*These papers have not yet received final closure in the work groups.