Following a brief summary of recent developments regarding the implementation and re-evaluation of the 1997 standards, this report provides a broad overview of the standard-setting process, followed by a description of revisions to earlier standards, legal challenges to the 1997 standard, and particulate matter health effects research. EPA’s ongoing progress in reviewing the 1997 standard is then summarized. Other activities that potentially impact the implementation and review of the particulate matter standards, such as other air quality regulations and proposed legislation, are also discussed in this report.
Climate change and greenhouse gas (GHG) emissions have been an issue in the 108th Congress, as they have been over the past decade. Bills directly addressing climate change issues range from those focused primarily on climate change research (H.R. 1578 and S. 1164) to comprehensive emissions cap and trading programs for all six greenhouse gases (S. 139 and H.R. 4067). This report briefly discusses basic concepts on which these bills are based, and compares major provisions of the bills in each of the following categories: climate change research, GHG reporting and registries, and cap and trade programs.
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